A) 90 yr
B) 18 yr
C) 38 yr
D) 21 yr
Correct Answer: D
Solution :
Principal = Rs. x \[\therefore \] \[x=\frac{x\times 7\times R}{100}\,\,\,\,\text{or}\,\,R=\frac{100}{7}\] Now, \[3x=\frac{x\times 100\times T}{7\times 100}\] .\[\therefore \] \[T=21\,\,yr\]You need to login to perform this action.
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