Ratio Proportion &Ages

1. If A : B = 4 : 7 and B : C = 5 : 9 then A : B : C is :

a) 20 : 35 : 63 b) 35 : 36 : 63 c) 30 : 35 : 65 d)25 :34: 68

2. If m : n = 3 : 4 and n : o = 8 : 9, then m : o is :

a) 1 :3 b) 3 :2 c) 2 : 3 d) 1 : 2

3. If 15% of A is the same as 20% of B, then A : B is :

a) 3 : 4 b) 4 : 3 c) 17 : 16 d) 16 : 17

4. Which of the following ratios is greatest ?

a) 7 :15 b) 15 :23 c) 17 :25 d) 21 :29

5. The ratio of number of boys and girls in a class is 3 : 2. In the 1^st semester exam 20% of boys and 25% of girls get more than or equal to 90% marks. What percentage of students get less than 90% marks ?

a) 56 b) 70 c) 78 d) 80

6. A mixture of 85 kg contains milk and water in the ratio 27 : 7. How much more water is to be added to get a new mixture containing milk and water in the ratio 3:1?

a) 5 kg b)6.5 kg c) 7.5 kg d) 8 kg

7. The ages of Raju and Biju are in the ratio 3:1. Fifteen years hence, the ratio will be 2:1. Their present ages are:

a) 30yrs, 10yrs b) 45 yrs, 15yrs c)21 yrs, 7 yrs d) 60yrs, 20yrs

8. The speeds of three motor bikes are in the ratio 6 : 5 : 4. The ratio between the time taken by them to travel the same distance is :

a) 10 : 12 : 15 b) 12 : 10 : 8 c) 15 : 12: 10 d) 10 : 15 : 12

9. In a company 10% of male staff are same in number as 1/4^th of the female staff. What is the ratio of male staff to female staff

a) 3 : 2 b) 5 : 2 c) 2 : 1 d) 4 : 3

10. The telephone bill of a certain establishment is party fixed and partly varies as the number of calls consumed. When in a certain month 540 calls made the bill is Rs.1800. In another month 620 calls are consumed then the bill becomes Rs.2040. In another month 500 units are consumed due to more holidays. The bill for that month would be :

a) Rs.1560 b) Rs.1680 c) 1840 d) Rs.1950

11.The difference between the ages of Sridhar and Sekhar is 11 years and they are in the ration 2:3, then the ration of their ages after 5 years is?

a)20:27 b)27:38 c) 9:10 d) 10:9

12 . The ration between the ages of X and Y at present 5:6 seven years hence the ration of their ages will be 6:7. What is present age of X?

a) 35 Yrs b) 42 Yrs c) 49 Yrs d) 56 Yrs

13. The ration between the ages of Anand and Prameela after 10 years will be 4:5. If the sum of their Present ages be 70 years. What is present age of Anand?

a) 50 Yrs b) 40 Yrs c) 45 Yrs d) 30 Yrs

14. The sum of the ages of Jayesh, Prakash and Sameer is 93 years, 10 years ago the ratio of their ages was 2:3:4. What is the present age of Prakash?

a) 32 Yrs b) 24 Yrs c) 31 Yrs d) 42 Yrs

15. The present age of A and B in the ratio 2:5 after 8 years their ages will be in the ratio 1:2. The difference Of their ages is?

a) 20 Yrs b) 24 Yrs c) 26 Yrs d) 29 Yrs

16. Four years ago at what time of marriage the average age of a couple was 20 years. Now they have 3 years old boy then what is the average age of the family?

a) 6 1/3 Yrs b) 15 2/3 Yrs c) 16 Yrs d) 17 Yrs.

17. The age of a father 10 years ago was thrice the age of his son. Ten years hence the fathers age will be twice of his son. Find the fathers present age?

a) 50 Yrs b) 60 Yrs c) 70 Yrs d) 80 Yrs

18. The sum of the ages of son and father is 56 years. After 4 years the age of the father will be 3 times that of the son. Their present ages respectively?

a) 12 Yrs & 44 Yrs b) 16 Yrs & 42 Yrs c) 16 Yrs & 48 Yrs d) None

19. Ten years hence a man will be twice as old as his son, but two years ago he was fair times as old as his son then was. Find the sum of their present ages?

a) 36 Yrs b) 34 Yrs c) 44 Yrs d) 52 Yrs

20. Sum of Suraj’s present age and his age after 8 years is 32 years. The ration of Suraj’s present age and his father’s present age is 2:7. How old his father today?

a) 6 Yrs b) 12 Yrs c) 42 Yrs d) 34 Yrs

21. 15 years hence, a man will be just 4 times as old as he was 15 years ago. His present age is ?

a) 10 Yrs b) 15 Yrs c) 20 Yrs d) 25 Yrs

22. There are some pigeons and hares in a zoo. If heads are counted. There are 200. If legs are counted. There are 580. The no. of hares in the zoo is?

a) 110 b) 100 c) 90 d) 85

23. 5 Cows cost as much as 7 bullocks, 21 bullocks cost as much as 10 horses, 16 horses cost as much as 9 camels. If the cost of one camel is Rs.3200/-. Find the cost of one cow?

a) Rs.1200/- b) Rs.1300/- c) Rs.1400/- d) Rs.1500/-

24. Rs.160/- contained in a bag consists of one Rupee, 50 paise and 25 paise coins in the ratio 4:5:6. What is the number of 25 paise coins?

a) 400 b) 115 c) 120 d) 110

25. A sum is divided among X, Y and Z in such a way that for each rupee X gets, Y gets 45 paise and Z gets 30 paise. If the share of Y is Rs.27/- . What is the total amount?

a) Rs.100/- b) Rs.105/- c) Rs.120/- d) Rs.102/-

26. The monthly incomes of two persons P and Q are in the ratio 4:3 and their months expenditures are in the ration 3:2. If each of them save Rs.750/- per month then Q’s monthly income is?

a) Rs.3000/- b) Rs.1500/- c) Rs.2250/- d) Rs.3750/-

27. Kamala got married 6 years ago. Today her age is 1 ¼ times of her age at the time of marriage.Her Son's age is (1/10) times of her age. Her son’s age is ?

a) 2 Yrs b) 3 Yrs c) 4 Yrs d) 5 Yrs

28. Five years ago Vinay’s age was one third of Vikas and now Vinay’s age is 17 years. What is the present age of Vikas?

a) 9 Yrs b) 36 Yrs c) 41 Yrs d) 51 Yrs

29. The difference between the ages of two persons is 10 years 15 years ago. The elder one was twice as old as the younger one. The present age of the elder person is?

a) 25 Yrs b) 35 Yrs c) 45 Yrs d) 55 Yrs

30. The age of man is 3 times the sum of the ages of his two children’s. Five years hence his age will be double the sum of their ages. What is his present age in years?

a) 42 Yrs b) 48 Yrs c) 45 Yrs d) 57 Yrs