If the ratio of the ages of A and B is 3:5 and the sum of their ages is 80 years, what is the age of B? यदि A और B की आयु का अनुपात 3:5 है और उनकी आयु का योग 80 वर्ष है, तो B की आयु क्या है?
A
30 years (30 वर्ष)
B
40 years (40 वर्ष)
C
50 years (50 वर्ष)
D
60 years (60 वर्ष)
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Correct Answer 50 years
Explanation
Let ages be 3x and 5x. 3x + 5x = 80 => 8x = 80 => x = 10. Age of B = 5x = 5 * 10 = 50 years.