जॉइन Examsbookउत्तर : 2. "50/9 %"
A sum of money becomes 7/6 of itself in 3 years at a certain rate of simple interest. The rate per annum is ?5
प्र: A sum of money becomes 7/6 of itself in 3 years at a certain rate of simple interest. The rate per annum is ?
- 145/7 %false
- 250/9 %true
- 351/7 %false
- 447/ 9 %false
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उत्तर : 2. "50/9 %"
व्याख्या :
Answer: B) 50/9 % Explanation: Let sum = S. Then, amount = 7S/6 S.I. = 7S/6 - S = S/6; Time = 3 years. Rate = (100 x S) / (S x 6 x 3) = 5 5/9 = 50/9 %.