Ratio And Proportion – Aptitude Questions And Answers

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Ratio And Proportion – Aptitude Questions And Answers

1. The ratio of three numbers is 3 : 4 : 7 and their product is 18144. The numbers are
 
 
 
 

2. In a college, the ratio of the number of boys to girls is 8 : 5. If there are 160 girls, the total number of students in the college is
 
 
 
 

3. A sum of money is to be distributed among A, B, C, D in the proportion of 5: 2: 4:3. If C gets Rs. 1000 more than D, what is B's share
 
 
 
 

4. A ratio between two numbers is 3 : 4 and their L.C.M. is 180. The first number is
 
 
 
 

5. The compounded ratio of (2:3), (6:11) and (11:2) is
 
 
 
 

6. A mixture contains alcohol and water in the ratio 4 : 3. If 5 liters of water is added to the mixture, the ratio becomes 4: 5. Find the quantity of alcohol in the given mixture.
 
 
 
 

7. Jo's collection contains US, Indian and British stamps. If the ratio of US to Indian stamps is 5 to 2 and the ratio of Indian to British stamps is 5 to 1, what is the ratio of US to
British stamps?
 
 
 
 

8. A bag contains 50 P, 25 P and 10 P coins in the ratio 5: 9: 4, amounting to Rs. 206. Find the number of coins of each type respectively.
 
 
 
 

9. A sum of Rs.312 was divided among 100 boys and girls in such a way that the boy gets Rs.3.60 and each girl Rs. 2.40 the number of girls is
 
 
 
 

10. A and B together have Rs. 1210. If  of A's amount is equal to  of B's amount, how much amount does B have?
 
 
 
 

11. Two numbers are respectively 20% and 50% more than a third number. The ratio of the two numbers is:
 
 
 
 

12. If Rs. 782 be divided into three parts, proportional to , then the first part is?
 
 
 
 

13. A sum of money is to be distributed among A, B, C, D in the proportion of 5: 2: 4: 3. If C gets Rs. 1000 more than D, what is B's share?
 
 
 
 

14. In a mixture 60 litres, the ratio of milk and water 2 : 1. If this ratio is to be 1 : 2, then the quanity of water to be further added is:
 
 
 
 

15. 1: 3 = 1 2/3: x. The value of x is?
 
 
 
 

16. What number has a 5:1 ratio to the number 10?
 
 
 
 

17. Seats for Mathematics, Physics and Biology in a school are in the ratio 5 : 7 : 8. There is a proposal to increase these seats by 40%, 50% and 75% respectively. What will be the the
ratio of increased seats
 
 
 
 

18. If a: b = 7: 5, b: c = 9: 11, find a: b: c?
 
 
 
 

19. If a: b = 3:4, b:c = 7:9, c:d = 5:7, find a:d?
 
 
 
 

20. The inverse ratio of 3: 2: 1 is?
 
 
 
 


 

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