Question

A sum of money amount to Rs 1237.50 and Rs 1443.75 in 4 and 6 years respectively at a simple rate of interest Find principle

Answer 1

Principal + interest of 4 years = Rs. 1237.50 Same principal + interest of 6 years = Rs. 1443.75
$\therefore$ 2 years interest on the given principal = Rs. (1443.75 - 1237.50) = Rs. 206.25
$\therefore$ 4 years interest on the given principal = $Rs.\frac{206.25}{2}\times 4=412.50$
$\therefore$ Principal = Amount of 4 year - Interest of 4 year = Rs. 1237.50 - 412.50 = Rs. 825