Question

at what sum of simple interest will a sum of money double itself in 12 1/2 years
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Answer 1

Answer:

HEY!! HERE IS YOUR REQUIRED ANSWER STEPWISE-:

The Sum doubles itself in 12 years i.e it becomes 200% (12th year) from 100% (0th year)

As the Sum is 100% of itself , there is a addition of 100% of Sum in 12 years . i.e Interest .

So , In 12 years total Interest = 100%

Therefore , In 1 year , total Interest = 100/12 = 8.33%

Hence , Simple Interest = Rate Percent Per Annum = 8.33%

Answer 2

Answer:

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