Ratio and Proportion

Question 1

In a box, there are 10p, 25p and 50p coins in the ratio 4:9:5 with the total sum of Rs 206. How many coins of each kind does the box have?

• 200, 360, 160
• 135, 250, 150
• 90, 60, 110
• Cannot be determined

Question 2

Mark, Steve and Bill get their salaries in the ratio of 2:3:5. If their salaries are incremented by 15%, 10%, and 20% respectively, the new ratio of their salaries becomes:

• 8:16:15
• 23:33:60
• 33:30:20
• 21:25:32

Question 3

In a library, the ratio of the books on Computer, Physics and Mathematics is 5:7:8. If the collection of books is increased respectively by 40%, 50% and 75%, find out the new ratio:

• 3:9:5

• 7:5:3

• 2:3:4

• 2:5:4

Question 4

The ratio 5:3 represents 16 liters of a mixture containing milk and water. If 4 liters of water is added and 4 liters of milk is extracted from the mixture, then the ratio of the mixture will be:

• 7:3
• 5:6
• 2:3
• None of these

Question 5

If the ages of Jacob, Max and Samuel are in the proportion 3:5:7 and the average of their ages is 25 years, then find the age of the youngest person.

• 15 years
• 10 years
• 7 years
• 18 years

Question 6

A certain amount of money is distributed between Alfred, Adam, Harry and Leo in the proportion of 5:2:4:3. Harry\'s share is Rs 1000 more than Leo\'s share. How much money does Adam get?

• Rs 800
• Rs 1000
• Rs 1050
• Rs 2000

Question 7

If (x:y) = 2:1, then (x²-y²):(x²+y²) = __ ?

• 1:2
• 3:5
• 2:1
• 5:4

Question 8

Syrup and Water are mixed in 2:1 ratio to form 60 litres of a mixture. How much water needs to be added to make the ratio 1:2?

• 60 litres
• 85 litres
• 55 litres
• Cannot be determined

Question 9

Felix and Adam win Rs 1210 together. 4/15 of Felix\'s share is same as 2/5 of Adam\'s share. How much did Adam win?

• Rs 484
• Rs 330
• Rs 360
• Data inadequate

Question 10

Two numbers are in the ratio of 2:9. If their H. C. F. is 19, numbers are:

• 6, 27
• 8, 36
• 38, 171
• 20, 90