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

₹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