Question

Find the sum of money which will amount to Rs 17576 in 3 yrs at 4% CI

Answer 1

Find the sum of money which will amount to Rs 17576 in 3 yrs at 4% CI.

solution

let Principal be Rs 100

$\mathsf{{amount \: in \: 3yrs \: = rs100(1 + \frac{4}{100} {)}^{3} } = rs100 \times \frac{ {26}^{3} }{ {25}^{3} } } \\ \mathsf{if \: amount \: is \: rs100 \times \frac{ {26}^{3} }{ {25}^{3} } the \: principal = rs100} \\ \mathsf{if \: the \: amount \: = \: rs17576} \: \: then \: principal \: = rs \: \frac{100}{100} \times \frac{25}{25 }\times \frac{25}{25 }\times \: \frac{25}{25 } \times 176576 \\ \boxed{\boxed {\bold{ \red{ = rs15625}}}}$