The ratio of present age of Ramesh and his daughter is 8 : 5, after 8 years ratio of their ages will be 3 : 2, then the present age of the daughter is :रमेश और उसकी पुत्री की वर्तमान आयु का अनुपात 8 : 5 है, 8 वर्ष पश्चात् उनकी आयु का अनुपात 3 : 2 होगा, तो पुत्री की वर्तमान आयु है :
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Correct answer: A. 40 years40 वर्ष
Explanation
Let present ages be 8k and 5k. After 8 years (8k + 8)/(5k + 8) = 3/2, so 16k + 16 = 15k + 24 and k = 8. Daughter's present age = 5 × 8 = 40 years.माना वर्तमान आयु 8k और 5k है। 8 वर्ष बाद (8k + 8)/(5k + 8) = 3/2, अतः 16k + 16 = 15k + 24 और k = 8। पुत्री की वर्तमान आयु = 5 × 8 = 40 वर्ष।More Mathematics & Numerical Ability questions
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