2. At what rate percent per annum will a sum of money double itself in 8 years.
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let the principal be 100 .
Then, amount = 200
SI = 100
Time = 8 years
Rate = SI×100/P×T
=> 100×100/100×8
=> 100/8
=> 12.5%
Rate = 12.5%
kakkerisunil:
hi
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