Question

1. छ: वर्ष पूर्व A, B और C की आयु का अनुपात 2 : 3:5 था। आज उनकी आयु का योग 168 वर्ष है। उनकी आयु ज्ञात कीजिए। The ratio in the age of A, B and C six year before was 2:3:5. If the sum of their age is 168 years. Find their age.
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Answer 1

Answer:

Let the sum of the ages of A=5x and B=3x 

Then after 6 years, their ages are in ratio 7:5

∴ 3x+65x+6=57

∴ 25x+30=21x+42

4x=12

x=3

Present age of A= 5x=15

Present age of B=3x=9

Sum of present age =15+9=24 years