Question

what sum will amount to Rs 5525 at 10% p.a. simple interest in 3 years?

Answer 1

Answer:

By given, Amount=5525

rate=10%

time=3 years

To find:Principal

AMOUNT=PRINCIPAL +SI

SI =AMOUNT-PRINCIPAL

SI=5525-P

$simple \: interest = \frac{prt}{100} \\ 5525 - p = \frac{p \times 10 \times 3}{100} \\ 5525 - p = \frac{3p}{10} \\ 5525 = \frac{3p + 10p}{10} \\ 5525 \times 10 = 13p \\ p = 4250$

So principal is 4250 rupees

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