Question : A certain sum becomes 7 times in 8 years at Simple Interest, then in how many years will it become 19 times of itself?
Option 1: 15
Option 2: 18
Option 3: 28
Option 4: 24
Correct Answer: 24
Solution : Let the sum be P. Total amount for 8 years = 7P Simple Interest for 8 years = 7P – P = 6P If total amount = 19P, Simple Interest = 18P 18P interest will be received in 24 years since P interest was received in 8 years. Hence, the correct answer is 24.
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Question : At a certain rate of Simple Interest, a certain sum of money becomes double itself in 10 years. It will become triple of itself in:
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