1.

1). Rs. 531812). Rs. 557903). Rs. 547844). Rs. 51786

Answer»

Let the money lent be Rs. X

Now,

Compound Interest = P (1 + R/100)n - P

And,

SI = (P × r × n)/100

Where, P = Principal Amount

r = Rate of interest (PER annum)

n = NUMBER of years

Hence,

X × [1 + 7/100]3 - X - (X × 7 × 3)/100 = 800

X × (1.07)3 - 1.21X = 800

X = 53181



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