Practice30 Create account

Adding 5 to each of two numbers that are in the ratio 2 : 7 changes their ratio to 1 : 3. What is the larger number?

Competition practiceRatio, Proportion & Mixtures

A70
B20
C35
D63

Step-by-Step Solution

Let the numbers be

2 x

and

7 x . (2 x + 5) / (7 x + 5) = 1/3

gives

6 x + 15 = 7 x + 5

, so

x = 10

. The numbers are 20 and 70; the larger is 70.

Answer: A) 70

Master this topic in 30 minutes a day.

Don't just memorise the answer — build a daily practice habit.

Practice 5 Similar Questions Free →

All Ratio, Proportion & Mixtures practice questions

More Ratio, Proportion & Mixtures practice

A jug holds 28 litres of sherbet in which syrup and water are in the ratio 5 : 2. How…A container holds 50 litres of pure milk. Water is added until the ratio of milk to…The ages of two sisters are in the ratio 3 : 5. Six years from now the ratio will be 2 :…Two numbers are in the ratio 3 : 7. If 4 is subtracted from each, the ratio becomes 1 :…Two kinds of rice costing ₹90 and ₹120 per kg are mixed in the ratio 2 : 1. What is the…