if a certain principal becomes double in 10 years, then the yearly rate of interest is
a. 5%
b. 10%
c. 15%
d. 20%
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Let the principal be x
Amount = 2x
Dimple Interest = A - P
= 2x - x
= x
Rate of interest = SI × 100/P × T
= x × 100/x × 10
= 10%
Amount = 2x
Dimple Interest = A - P
= 2x - x
= x
Rate of interest = SI × 100/P × T
= x × 100/x × 10
= 10%
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