# Sangeeta lent RS 40960 to amar to purchase a shop at 12 percent per annum . If the interest is compounded semi-annually , find the interest paid by amar after 1 and half year

1
Log in to add a comment

Log in to add a comment

rate=12%

time=1&a half year or 3/2 years

amount=p(1+r/100)2n

40960(1+12/100)3/2*2

40960(1+3/25)3

LCM of 1 & 25 is 25

so,

40960(25/25+3/25)3

40960(28/25)3

rs57,545.85= amount

ci= amount-principal

rs 57545.85-40960

rs 16585.85