Question

f. Find the S.I. and the amount on: -
a) Rs. 620 for 4 months at 8p per rupee per month

b) Rs. 850 from 10th March to 3 August at 2-% p.a.
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Answer 1

Answer:

(i) P = Rs. 150, R = 5% per year

T = 4 Years

∴ S.I. = P . R. T/100 = (150 × 5 × 4)/100

= Rs. 30

And amount = P + S.I.

= Rs. 150 + Rs. 30 = Rs. 180

(ii) P = Rs. 350, R = 8 % p.a.

T = (3.1/2 ) years = (7/2) years

∴ S.I. = (P × R × T)/100 = (350 × 8 × 7)/(100 × 2)

= Rs. 98

Amount = P + S.I. = Rs. 350 + Rs. 98

= Rs. 448