Question

What sum will produce the same interest in 9 year at the rate 8% simple interest as rs.800 produce in 3 year at 9/2% per annum?​

Answer 1

$\huge\underline\bold \red{Solution}$

$\longrightarrow$$\sf{Given , P = 800</p><p>R = 9/2 = 9/2}$%

$\longrightarrow$$\sf{T = 3}$

$\longrightarrow$$\sf{Then, S.I. = (800 x 9/2 x 3/100) = 108.}$

$\longrightarrow$$\sf{Now, P = 150</p><p>S.I. = 108}$

$\longrightarrow$$\sf{R = 8}$%$\sf{T = (100 x 108)/(150 x 8) = 9 years.}$

Answer 2

Answer:

150 will produce the same interest at the rate 8% as Rs. 800 produce in 3 years at the rate 9/2%? Then, S.I. = (800 x 9/2 x 3/100) = 108.