Sazan is 50 years old and Nazmul is 40 years old. How long ago was the ratio of their ages 3 : 2?

সঠিক উত্তর

20 years

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Question: Sazan is 50 years old and Nazmul is 40 years old. How long ago was the ratio of their ages 3 : 2?

Solution:

Here, we have to calculate How many years ago the ratio of their ages was 3 : 2.
Let us assume x years ago

At present:
Sazan is 50 years and Nazmul is 40 years

x years ago:
Sazan’s age = (50 - x) and
Nazmul's age = (40 - x)

Given, the ratio of their ages was 3 : 2

(50 - x)/(40 - x) = 3/2
⇒ 100 - 2x = 120 - 3x

∴ x = 20

Therefore, the answer is 20 years.

রেফারেন্স মাত্র

20 years সঠিক

30 years

40 years

25 years

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