Question

a some money invested at 7.5% simple intrest per annum become 819 maturity after 4 year . what was the original

Answer 1

Answer:

₹630

$819 = x(1 + \frac{(7.5 \times 4)}{100} ) \\ \\ 819 = x(1 + \frac{3}{10} ) \\ \\ x = (819 \times 10) \div 13 \\ \\ x = 630$