Math, asked by vineethvishwa4769, 1 year ago

At what rate per cent per annum will $400 yield an intrest of $78 in 1 1/2 years

Answers

Answered by mysticd
2
Hi ,

principal ( P ) = $400

Interest ( I ) = $78

Time ( T ) = 1 1/2 years = 3/2 years

Let the rate of interest = R%

R = ( 100 × I ) / ( PT )

= ( 100 × 78 ) / [400 × ( 3/2 ) ]

= ( 100 × 78 × 2 ) / ( 400 × 3 )

= 13%

Therefore ,

required rate of interest = ( R ) = 13%

I hope this helps you.

:)
Similar questions