At what rate of simple interest will a sum of money double itself in 20 yrs
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as we know that
time for double money = 100/rate of interest
20=100/rate of interest
rate of interest= 100/20
rate of interest=5 %p.a.
time for double money = 100/rate of interest
20=100/rate of interest
rate of interest= 100/20
rate of interest=5 %p.a.
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