Question

simple interest on a sum of money is 9/16 of the sum. If the rate is 4 whole 1/2 per annum, find the time.​

Answer 1

Let the principal ( p ) = Rs x

Simple interest ( I ) = 9x/16

Time = t

Rate of interest ( r ) = 9/2% per annum

t = ( 100 × I ) / ( pr )

= [ 100 × ( 9x/16 ) ]/ [ x × ( 9/2 ) ]

= ( 100 × 9x × 2 ) / ( x × 16 × 9 )

After cancellation ,

= 25/2

= 12.5 years

I hope this helps you.

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