Question

If ₹80 amounts to ₹140 in 4 years, what will ₹96 amount to in 10 years at the same rate of interest per annum?

Options

• ₹ 276

• ₹ 306

• ₹ 386

• ₹ 300

Answer 1

₹ 276

Explanation:

case I

When P = 80, A = 140, SI = 140 − 80 = 60, R = ?, T = 4

`"R"=(60xx100)/(80xx4)=75/4%`........`("R"=("SI"xx100)/("P"xx"T"))`

Case II

P = 96, R =`75/45%`, T = 10, SI = ?, A = ?

`"SI"=96/100xx(75xx10)/4=180`

A = 180 + 96 = 276