Question

in what time a certain sum of money will be 2.5 times at 10% rate of interest??


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Answer 1

Answer:

9.61

Step-by-step explanation:

Let the certain sum of money be A and x be the time in which A will be 2.5 times,

A$(1+0.1)^{x}$ = 2.5A

$(1.1)^{x}$ = 2.5

using log(x) both sides,

log$(1.1)^{x}$ = log(2.5)

xlog(1.1) = log(2.5)

x = $\frac{log(2.5)}{log(1.1)}$

x = 9.61