RRB - Ratio and Proportion - Aptitude Questions with Answer

1. If A:B=2:3, B:C = 4:5 and c:D = 6:7, then A:D is equal to:

1. 2:7
2. 7:8
3. 16:35*
4. 4:13

2. If 2A = 3B 4B = 5C, then A:C is:

1. 3:4
2. 8:15
3. 15:8*
4. 4:3

3. If A:B = 7:9 and B:C= 3.5, then A:B:C is:

1. 7:9:5
2. 21:35:45
3. 7:9:15*
4. 7:3:15

4. 0.6 of a number equals 0.09 of another number. The ratio of the number is:

1. 2:3
2. 1:15
3. 20:3
4. 3:20*

5. The ratio of two numbers is 3:4 and their sum is 420. The greater of the two numbers is:

1. 175
2. 200
3. 240*
4. 315

6. If a carton containing a dozen mirrors is dropped, which of the following cannot be the ratio of broke mirrors to unbroken mirrors?

1. 2:1
2. 3:1
3. 3:2*
4. 7:5

7. The third proportional to 0.8 and 0.2 is:

1. 0.4
2. 0.8
3. 0.05*
4. 0.032

8. What must be added to each term of the ration 7 : 13 so then the ratio becomes 2 : 3 ?

1. 1
2. 2
3. 3
4. 5

9. Out of the ratios 7 : 15, 15 : 23, 17 : 25 and 21 : 29, the smallest one is :

1. 17 : 25
2. 7 : 15*
3. 15 : 23
4. 21 : 29

10.If 2A=3B=4C then A:B:C is:

1. 2:3:4
2. 4:3:2*
3. 6:4:3
4. 3:4:6

11. If : then the value of x is :

1. 1.25
2. 1.5
3. 2.5
4. 2.25*

12. The weight of a 13 m long iron rod is 23.4 kg. The weight of 6 m long of such rod will be:

1. 7.2 kg
2. 12.4kg
3. 10.8 kg*
4. 18 kg

13. Two number are in the ratio 3:15 If each number is increased by 10, the ratio becomes 5:7. The numbers are:

1. 3.5
2. 7,9
3. 13.22
4. 15.25*

14. If 10% of x is the same as 20% y, then x:y is equal to:

1. 1:2*
2. 2:1
3. 5:1
4. 10:1

15. What must be added to each term of the ration 7 : 13 so then the ratio becomes 2 : 3 ?

1. 1
2. 2
3. 3
4. 5

16. What number should be subtracted from each of the numbers 54, 71, 75 and 99 so that the remainders may be proportional :

1. 1
2. 2
3. 3
4. 6

17. Three friends divide Rs. 624 among themselves in the ratio :: the share of the third friend is:

1. Rs.288
2. Rs. 192
3. Rs. 148
4. Rs. 144*

18. In a ration which is equal to 5 : 8, if the antecedent is 40, then consequent is :

1. 25
2. 64
3. 48
4. non of these*

19. The mean proportional between 0.32 and 0.02 is:

1. 0.34
2. 0.3
3. 0.16
4. 0.08*

20. What number should be added to each one of, 6, 14, 18, 38 to make it equally proportionate :

1. 1
2. 3
3. 4
4. 5

Answers:

* - marked value is answer.

IBPS Common Written Examination Numerical Ability - 2011

Previous year questions with answers - IBPS Common Written Examination Numerical Ability - 2011.

1. The sum of three consecutive natural numbers each divisible by 3 is 72. What is the largest among them?
1. 25
2. 26
3. 27
4. 30 5. 26

Ans:(3)

2. A towel, when bleached, was found to have lost 20% of its length and 10% of its breadth. The percentage of decrease in area is:
1. 11%
2. 12%
3. 20%
4. 28%
5. 33%

Ans:(4)

3. In a ratio, which is equal to 3 : 4, if the antecedent is 12, then the consequent is:
1. 10
2. 16
3. 20
4. 22
5. 18

Ans:(2)

4. Jayesh is as much younger than Anil as he is older than Prashant. If the sum of the ages of Anil and Prashant is 48 years, what is Jayesh’s age in years?
1. 29
2. 30
3. 24
4. 25
5. 28

Ans:(3)

5. If the exports of company B in the year 2003 were Rs. 77 crore, then, what were the imports of the company in that year?
1. 86 crore
2. 107.5 crore
3. 103.95 crore
4. 101 crore
5. None of these

Ans:(3)

6. Find the greatest number that will divide 640, 710 and 1526 so as to leave 11, 7, 9 as remainders respectively.
1. 36
2. 37
3. 42
4. 29
5. 47

Ans:(2)

7. A tempo is insured to the extent of 4 5 of its original value. If the premium on it at the rate of 1.3 percent amounts to Rs. 910, the original value of the tempo is:
1. Rs. 78,000
2. Rs. 78,500
3. Rs. 80,000
4. Rs. 85,000
5. Rs. 87,500

Ans:(5)

8. An automobile financier claims to be lending money at simple interest, but he includes the interest every six months for calculating the principal. If he is charging an interest of 10%, the effective rate of interest becomes:
1. 13%
2. 10.25%
3. 15%
4. 11%
5. None of these

Ans:(2)

9. A, B and C are employed to do a piece of work for Rs. 529. A and B together are supposed to do 19/23 of the work and B and C together 8/23 of the work. What amount should A be paid?
1. Rs. 320
2. Rs. 345
3. Rs. 355
4. Rs. 380
5. None of these

Ans:(2)

10. A bag contains one rupee, 50-paise and 25-paise coins in the ratio 2 : 3 5. Their total value is Rs. 114. The value of 50 paise coins is:
1. Rs. 28
2. Rs. 36
3. Rs. 49
4. Rs. 72
5. Rs. 50

Ans:(1)

11. A boy rides his bicycle 10 km at an average speed of 12 km/hr and again travels 12 km at an average speed of 10 km/hr. His average speed for the entire trip is approximately :
1. 10.4 km/hr
2. 10.8 km/hr
3. 12 km/hr
4. 14 km/hr
5. 13 km/hr

Ans:(2)

12. From a pack of 52 cards, two cards are drawn together at random. What is the probability of both the cards being kings?
1. 1/19
2. 27/29
3. 35/256
4. 1/121
5. 35/121

Ans:(4)

13. By selling 45 lemons for Rs. 40, a man loses 20%. How many should he sell for Rs. 24 to gain 20% in the transaction?
1. 19
2. 18
3. 24
4. 22
5. 23

Ans:(2)

14. What is the difference in exports between the periods March to May and June to August (in $ million)?
1. 418
2. 592
3. 5790
4. 585
5. None of these

Ans:(4)

15. The numerator of a non-zero rational number is five less than the denominator. If the denominator is increased by eight and the numerator is doubled, then again we get the same rational number. The required rational number is:
1. 1/8
2. 4/9
3. 2/8
4. 3/8
5. 3/8

Ans:(5)