If the present amount is ₹ 87,750 with 8% rate of interest in four years, then what was the principal amount?

₹78,456.34 ₹66,477.2 ₹56,896.98 ₹69,345.6

₹66,477.2

Total simple interest of 4 years = 4 × 8% = 32% Let Principal = 100% Amount = Principal + Simple Interest = 100% + 32% = 132% ATQ , 132% = 87750 1% = \(\frac{87750 }{132}\) = 664.772 Initial sum = 100% = 100 × 664.772 = Rs. 66477.2