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Ratio and Proportion Quiz : 03.10.2019

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Question 1

Before a battle there were the ratio of captains to soldiers was 2 : 7. During the war 25 captains and 100 soldiers were martyred. The new ratio of captains to soldiers became 3 : 10. What is the number of soldiers after the war?

Question 2

What is the fourth proportional to 189, 273 and 153?

Question 3

Three numbers are in the ratio 1 : 2 : 3 and the sum of their cubes is 4500. The smallest numbers is

Question 4

A milkman wants to sell his milk at cost price but still wants to make a profit of 20% by mixing water. In what ratio should he mix milk and water to achieve this profit.

Question 5

What is the third proportional to 10 and 25?

Question 6

The bus fare between two cities is increased in the ratio 17:20. Find the increase in the fare, if the original fare is Rs. 425

Question 7

If 50 less had applied and 25 less selected, the ratio of selected to unselected would have been 9 : 4. So how many candidates had applied if the ratio of selected to unselected was 2 : 1.

Question 8

If 3A = 7B = 13C, then A : B : C is equal to

Question 9

In an MBA selection process, the ratio of selected to unselected was 11:2. If 40 less had applied and 20 less selected, the ratio of selected to unselected would have been 10:1. How many candidates had applied for the process?

Question 10

If P : Q : R = 2 : 3 : 5, then what is the value of (P + Q) : (Q + R) : (R + P)?
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