Question

Find the principal and amount when simple interest is Rs.77, rate of interest is 7% p.a, time is 1¼yrs

Answer 1

Step-by-step explanation:

si = 77

r = 7%

t = 1¼ years = 5/4 yr

$p = \frac{si \times 100}{r \times t} = \frac{77 \times 100 \times 4}{7 \times 5} = 1760$

$amount = p + si = 1760 + 77 = 1837$