Question

Please answer

if a sum of rupees 50000 at compound interest 7% amounted to rupees 57245 find the time through which the money was invested​

Answer 1

Answer:

principal=50000

amount=57245

rate =7%

let time = 1year

A=P(1+R/100)^T

57245=50000(1+7/100)^1

57245=50000(100+7/100)^1

57245=50000×107/100

53500 is not equal to 57245

so, time is not equal to 1 year

let time =2 years

A=P(1+R/100)^T

57245=50000(1+7/100)^2

57245=50000(107/100)^2

57245=50000×107/100×107/100

57245=5×107×107

57245=57245

yes,time is equal to 2years