Memory Based Reasoning Questions asked in RRB PO Prelims 2017

Here we are Discussing Memory Based Reasoning Questions asked in RRB PO Prelims 2017

English Video: 

9th Sep 2017 (1st Slot):

Puzzles:

1) There are 7 person A, B, C, D, E, F and G born in 7 different month January, February, March, April, June, August, and October. A is born in the month having less than 31 days but not in April. There are 3 persons born between A and C. B is born on one of the day after D. No person is born between B and D. E is born on one of the day before G. E is not born in a month having maximum number of days. No person is born between G and E.

Solution:

January – C
February – E
March – G
April – F
June – A
August – D
October – B

2) Eight boxes A, B, C, D, E, F, G and H are arranged top to bottom but not necessarily in the same order. 3 boxes are placed between A and B..H is seated immediately below A. There are 2 boxes between H and G. There are as many boxes in between C and D as between H and B. C is seated above D. E is seated immediately below D. 3 boxes are there between E and F.

Solution:

From top to bottom:
B C G F A H D E

3) Four boxes between G and H. 2 are placed between G and I. No of boxes between H and M is same as between H and K. K is above M. One between J and L. And N immediately below L

Solution:

From top to bottom:
J G L N I K H M

4) M, N, O, P, Q, R, S and T are sitting around a circle. Equal number of persons are facing towards the center and outside. O sits 2nd to the right of R. R is facing towards the center. There are 2 persons in between O and N. S sits 2nd to the right of O. T sits on the immediate right of N. S an N are facing opposite direction ( if S is facing center then N is facing outside and vice versa). There are 3 persons in between P and Q. Both P and M are not immediate neighbours of R. Q sits 2nd to the right of M. Both T and Q faces opposite direction of O.

9th September 3rd Shift – Reasoning

1. Eight persons P, R, S, T, U, V, W and Z are sitting in a circle and some of them facing inside and some of them are facing outside of the circle but not necessarily in the same order.S sits third to the left of U. Only one person sits between U and V who is not a neighbour of S. W sits second to the right of V. Z sits third to the right of U. R sits second to the right of T but not a neighbour of V. S and R are facing opposite direction as that of T. Immediate neighbours of V facing same direction. W and P are facing same direction as Z. V faces inside.
2.  Eight boxes D, E, G, H, I, J, M and N are placed in eight different racks but not in same order.Four boxes are there between G and E. N is placed immediately below J and one box is there between J and M. As many persons between H and M is there between N and I. Only two boxes are there between H and I. H is placed above I and G but not on topmost rack.
3. Seven persons A, B, C, D, E, F and G are born in seven different months viz. January, March, May, July, August, October and December but not in same order.Only four members are born between A and D. A born before D. C is not born on March. Two persons born between C and E. C born before E. G born on one of the months after July but before September. F is not born before C.

Miscellaneous:

1. Next term in the series – ZB, XD, UG, QK, ?
2. Next term in the series – ZY, XW, TS, PO, ?
3. If all the letters of the word MONSTER are arranged as per the letters of English Alphabet Series, then how many letters will remain in the same position?
4. In number 73541826, how many such numbers are there which have as many numbers as per numerical number?
5. If in number 9264367, 2 is added to each even number and 1 is subtracted from each odd number, the how many digits will get repeated in the number?

Quantitative Aptitude: Number Series 36 (based on RRB PO prelims)

1. 5, 28, 47, 64, 77, ?
   A) 96
   B) 98
   C) 85
   D) 106
   E) 88   Option E
   Pattern:
   +23, +19, +17, +13, +11

6, 4, 5, 11, 39, ?
A) 160
B) 193
C) 189
D) 183
E) 171   Option C

Pattern:
*1 – 2, *2 – 3, *3 – 4, *4 – 5, *5 – 6

29, 15, 16, 34, 105, ?
A) 334
B) 444
C) 424
D) 347
E) 455   Option C

Pattern:
*0.5 + 0.5, *1 + 1, *2, +2, *3 + 3, *4 + 4

89, 88, 85, 78, 63, ?
A) 32
B) 30
C) 34
D) 27
E) 23   Option A

Pattern:
-1, -3, -7, -15, -31

190, 94, 46, 22, ?, 4
A) 16
B) 10
C) 9
D) 13
E) 8    Option B

Pattern:
190 – 2 = 188/2 = 9494 – 2 = 92, 92/2 = 46
46 – 2 = 44, 44/2 = 22
22 – 2 = 20, 20/2 = 10    

19, 9, 8, 14, 39, ?
A) 196
B) 152
C) 185
D) 106
E) 138    Option B

Pattern:
*0.5 – 0.5, *1 – 1, *2, – 2, *3 – 3, *4 – 4

1. 7, 6, 10, 27, 104, ?
   A) 530
   B) 493
   C) 489
   D) 515
   E) 509   Option D
   Pattern:
   *1 – 1, *2 – 2, *3 – 3, *4 – 4, *5 – 5
   
   

   
   
2. 4, 46, 86, 122, 156, ?
   A) 186
   B) 244
   C) 219
   D) 197
   E) 205   Option A
   Pattern:
   +42, +40, +36, +34, +30
   
   

   
   
3. 102, 101, 98, 91, 76, ?
   A) 42
   B) 40
   C) 45
   D) 37
   E) 33     Option C
   Pattern:
   -1, -3, -7, -15, -31
   
   

   
   
4. 728, 242, 80, 26, ?, 2
   A) 16
   B) 10
   C) 9
   D) 13
   E) 8      Option E
   Pattern:
   728 – 2 = 726, 726/3 = 242
   242 – 2 = 240, 240/3 = 80
   80 – 2 = 78, 78/3 = 26
   26 – 2 = 24, 24/3 = 8

Questions Asked in RRB Office Assistant Prelims 2017 – Sep 17

RRB OA 2017 Prelims – 17 Sep
1. 15 men do a work in 16 days & 18 women complete a work in 25 days. if 15 men started the work & left after 8 days then how many women required to complete remaining work in 3 days ?

2. 35 litre will be distributed in Milk & water in the ratio of 5:2. If 8 litre milk & 2.5 litre water will add then what is the new ratio?

3. A's salary is 40000 & he saves Rs. 8000. If he spend on rent & other expenses in the ratio of 5:3 then how many amount he spend on rent?

4. Cost price of an article was Rs. 800. when it was discounted by 20% & x% . he sells it at 480 RS. find the value of x?

5. 3 person average is 45 & 2 other person average is 55. then what is the value of all 5 person's average? {didn't remember the value}

6. 3 shirts & 5 trousers value is 4050. If one shirt is 8/9 of one trouser then what is the value of 3 trousers?

7. Principal = something , Rate - 11% , interest - something other principal = something , rate = given , find interest = ? [time will find out by first principal]

8. A & B present age ratio is something. 10 years hence their age ratio will become something. then what will the total of their age 8 year before ?

9. (A+ b ) average - 130. A is 25% of D. B is 20% of C. C is 50% of A. then what is the value of A?


Number Series Asked in RRB Office Assistant Prelims 2017 – Sep 16 & 17

1. 6,8,13,23,?,66
2. 7,8,18,57,232,?
3. 8,5,6,10,21,?
4. 4,18,46,102,?,438
5. 109,110,102,129,65,?
6. 7, 6, 10, 36, 280, ?
7. 6, 14, 78, 294, 806, ?
8. 4, 7, 16, 43, 124, ?
9. 69, 67, 62, 52, ?
10. 13, 7, 8, 13.5, 29, ?
11. 2, 6, 22, 86, 342,?
12. 2, 3, 8, 36, 296, ?
13. 266, 267, 240, 365, ?, 751
14. 17, 8, 7, 9, 16,?
15. 78, 78, 75, 67, ?, 28
16. 3, 8, 18, 38, 78, ?
17. 6, 3, 3, 6, 24, ?
18. 142, 133, 115, 88, ?
19. 5, 8, 12, 18, 27, ?
20. 2, 10, 30, 68, 130, ?
21 7, 11, 19, 35, 67, ?
22  515, 507, 480, 416, ?, 75
23  3, 9, 29, 77, 167, ?
24   12, 7, 8, 17, 69, ?
25   5, 10, 16, 24, 35, ?

Miscellaneous:

1. 35 litre will be distributed in Milk & water in the ratio of 5:2. If 8 litre milk & 2.5 litre water will add then what is the new ratio?

2. A’s salary is 40000 & he saves Rs. 8000. If he spends on rent & other expenses in the ratio of 5:3 then how much amount he spends on rent?

3. The circle of maximum radius is inscribed in a rectangle of 10m and 8m. Find the perimeter of the circle.

4. 15 men do a work in 16 days & 18 women complete a work in 25 days. if 15 men started the work & left after 8 days then how many women required to complete remaining work in 3 days?

5. Four years hence, B will be 30 years old. The ratio of A’s age one year hence to B’s age one year ago is 4:%. Find the age of A 5 years ago.

6. 3 shirts & 5 trousers value is 4050. If one shirt is 8/9 of one trouser then what is the value of 3 trousers? Cost price of an article was Rs. 800. when it was discounted by 20% & x%. he sells it at 480 RS. find the value of x?

7. The average of two consecutive even numbers is 109 and the average of two consecutive odd numbers is 114. If the smaller odd number is 3 greater than the larger even number then what is the sum of the smaller odd number and the larger even number.

8. 3 person average is 45 & 2 other person average is 55. then what is the value of all 5 person’s average?

9. The ratio of Curved Surface Area to total Surface Area of Cylinder is 3:5. If the curved surface area of the cylinder is 1848 metre square, find the height of the cylinder.

10. A & B present age ratio is something. 10 years hence their age ratio will become something. then what will the total of their age 8 years before?

11. An article is marked at 10% above the cost price. When the selling price of an article is increased by 20%, then the profit gets increased by Rs. 96. If the marked price is Rs. 440 then find original selling price.

12. (A+ 😎    average – 130. A is 25% of D. B is 20% of C. C is 50% of A. then what is the value of A?

13. A sum was put at simple interest at a certain rate for 3 years. Had it been put at 1% higher rate, it would have fetched Rs. 5100 more. The sum is?

14. There are 5 white balls, 6 red balls and 4 green balls. 2 balls are drawn one after the other. Find the probability that none of them is White.

15. A vessel contains liquid P and Q in the ratio 5 : 3. If 16 litres of the mixture are removed and the same quantity of liquid Q is added, the ratio become 3 : 5. What quantity does the vessel hold?

16. A started a business after investing Rs. 1200/-. After ‘x’ months, B joined with a capital of Rs. 1500/-. At the end of the year, B’s share was Rs. 750/- out of the total profit of Rs. 1950/-. What is the value of ‘x’?

17. A can complete a work in 15 days. B is 50% more efficient than A. Both A and B work together for some days, then B leaves and A finishes the remaining 1/3rd of the work. For how many days A & B worked together?

18. The Cost Price of B is 60% more than A. A was sold at 60% profit and B was sold at 20% loss. If the difference between their Selling Price is R. 32/-, find the cost price of B.

Puzzle:

Seven persons H, I, J, K, L, M and N lives in a seven storeyed building. The topmost floor is numbered seven and the lower most floor is numbered one. K lives below the third floor. Three persons live between K and I. N lives immediately below J. J lives in an even numbered floor. M lives immediately below H.

H,I,J,K,L,M and N are living in a seven store building. The lowermost floor is numbered one and the topmost floor is numbered seven. K lives in a even numbered floor below 6th floor. There are only tw floors between M and K. M lives in one of the floor above K. H lives immediately above J, who lives in an odd numbered floor. Number of floors above M is same as below Y. L lives immediately above N.

Seating Arrangement:

Seven persons A,B,D,E,F,G and H are sitting in a straight line facing north. G sits immediate to the right of D. B sits second to the right of H. More than three persons sits between G and F. B and F are not immediate neighbors. E is not an immediate neighbor of B and G. E sits right of F.

S,T,U,V,W,X & Y are sitting in a straight line and all are facing north but not in same order. T sits third to the right of X. More than one person sit to the right of T. W sits second to the left of Y. Y is not an immediate neighbor of T. More than one person sit between Y and S. Only Two person sit between S and U. V is not an immediate neighbor of X.

Data Interpretation:

Table shows the pastries sold on different days by different bakeries:

	P	Q	R	S	T
Tuesday	34	39	48	42	45
Wednesday	46	59	50	47	40
Thursday	34	42	49	41	38
Friday	48	48	59	49	42
Saturday	49	40	50	47	44

1) Find the ratio of pastries sold on Tuesday and Wednesday together by bakery P to the pastries sold Wednesday and Thursday together by bakery S.

a) 14 : 13

b) 9 : 11

c) 10 : 11

d) 9 : 13

e) 10 : 13

2) Find the difference between the pastries sold on Saturday and Friday together by bakery S and the pastries sold by bakery T on same days.

1. 12
2. 10
3. 14
4. 18
5. 11

3) If 40% of pastries sold by bakery R on Sunday compared to previous day, then find the number of pastries sold on Sunday by bakery R.

1. 68
2. 75
3. 72
4. 71
5. 70

4) pastries sold by shop Q and R together on Saturday is what percent of the pastries sold on Tuesday by bakery T?

1. 280%
2. 300%
3. 150%
4. 200%
5. 250%

5) What is the average of the pastries sold by bakery Q, R and S on Thursday?

1. 44
2. 42
3. 41
4. 45
5. 46

Solution for Data Interpretation:

1) c

Required ratio=80 : 88=10 : 11

2) b

Difference=96-86=10

3) e

Number of pastries sold by bakery R on Sunday=50×140/100=70

4) d

Required percentage=90/45×100=200%

5) a

Average=(42+49+41)/3=44

Simplification:

1) 4   2/3+3   2/9-2    1/9=?

1. 6 1/7
2. 3 3/7
3. 5 1/9
4. 4 11/13
5. 5 7/9

2) 5688+3878-2344=?÷2

1. 3422
2. 3611
3. 3512
4. 3432
5. 3621

3) 5/6×2.4×7+20=?

1. 38
2. 36
3. 34
4. 37
5. 40

4) (12×8-9×7)=?×3

1. 10
2. 11
3. 9
4. 15
5. 14

5) 14% of 250+?% of 80=195

1. 200
2. 180
3. 230
4. 210
5. 190

Answers for Simplification:

1) e

2) b

5688+3878-2344=?÷2

7222/2=?

3611

3) c

5/6×2.4×7+20=?

?=34

4) b

(12×8-9×7)=?×3

33/3=?

?=11

5) a

14% of 250+?% of 80=195

35+?%×80=195

?=(160×100)/80=200

Alphabet Series:

How many such pair of letters are there in the word “WEIGHTS” each of which has as many letters between them in the word as in the English Alphabet series ?

1. Today RRB CLERK 17th SLOT 3rd number series
   (a) 7 6 10 36 280 ?
   (b) 6 4 77 294 806 ?
   (c) 4 7 16 43 124 ?
   (d) 69 67 62 52 ?
   (e) 4 7 16 43 124 ?
   Today RRB CLERK 17th SLOT 2nd number series
   (a) 10, 4, 3, 3.5, 6, ?
   (b) 6, 5, 8, 21, 80, ?
   (c) 98, 111, 85, 137, ?, 241
   (d) 7, 8, 16, 43, 107, ?
   (e) 7, 7, 10, 18, ?, 57