Question

A sum of money doubles itself in 4 years. In how many years will it amount to 8 times of itself.​​

Answer 1

Answer:

Step-by-step explanation:

Similarly, we will find the relation of r and n after t years when the amount has become 8 times the principal. After this, we will find the value of t with these two relations. Therefore, T = 12 years. Hence, option (a) is the right answer.

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Answer 2

Answer:

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