The ratio of the age of a father to that of his son is 5:2. If the product of their ages is 1,000, what is the father's age? एक पिता और उसके पुत्र की आयु का अनुपात 5:2 है। यदि उनकी आयु का गुणनफल 1,000 है, तो पिता की आयु क्या है?
A
40 years (40 वर्ष)
B
50 years (50 वर्ष)
C
60 years (60 वर्ष)
D
100 years (100 वर्ष)
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Correct Answer 50 years
Explanation
Let ages be 5x and 2x. (5x)(2x) = 1000 => 10x² = 1000 => x² = 100 => x = 10. Father's age = 5 * 10 = 50 years.