DELHI POLICE MATHEMATICS QUIZ

Attempt now to get your rank among 43 students!

Question 1:

If (10x+5):(42x+8) is the triplicate ratio for 5:8, find x3

Question 2:

Two numbers are in the ratio 4:7. If 12 is subtracted from both then the ratio becomes 8:17. If 9 is added to each of the original numbers, then the ratio becomes:

Question 3:

A vessel contains 125 litre of milk. Certain part of mixture is replaced by water twice. Then find quantity of mixture (in litre) replaced. If ratio between milk to water becomes 16:9.

Question 4:

Rs. 99356 is to be distributed among A, B and C in the ratio 18:15:16. Share of A and C taken together exceeds the share of B by (in rupees):

Question 5:

The ratio of the income of A and B is 3:5, Whereas the ratio of their expenditure is 4:7 respectively. If A and B save Rs. 16000 and Rs 26000 , respectively, then what is the difference (in Rs.) between their expenditure?

Question 6:

A bag contains certain number of coins of different denominations. The ratio of the number of Rs.1 coins to Rs. 5 coins is 7: 5 respectively and the ratio of number of Rs.5 coins to Rs.10 coins is 10: 7 respectively. Find the total value of the Rs.5 coins, if the total value of the Rs.1 coins in the bag is Rs.98.

Question 7:

The monthly income of A and B are in the ratio 2:3 respectively. The spend in the ratio 3 : 4 and saves in the ratio 7:13. If the total monthly savings of both A and B taken together is Rs. 10,000, then what is the montly expenditure of B (in Rupees)?

Question 8:

A and B earn in the ratio 2:1. They spend in the ratio 5:3 and save in the ratio 4:1. If the total monthly savings of both A and B are Rs. 5,000, the monthly income of B is:

Question 9:

In a competitive examination, the ratio of qualified boys and girls is 3 : 2. If one more boy qualifies, and one qualified girl leaves the class, then their new ratio becomes 2 : 1. What is the initial total sum of the qualified candidates?

Question 10:

Rani has a box in which she kept orange and mango candies. Orange and mango candies were in the ratio 9:7, but after she ate 12 orange candies, the ratio became 15 : 14. What was the total numbers of candies both orange and mango that initially Rani had?