Question

If the simple interest on 3,000 for
6 months is 90, then the rate of
interest per cent per annum is
(A) 6
(B) 5
(C) 7
(D) 8​

Answer 1

Answer:

solution,

principal =Rs.3000

time=6 month=6/12=0.5years

interest =Rs.90

rate=? x (say)

si=p×t×r/100

90=3000×0.5×x/100

90=15x

x=90/15

x=6

so, option (A) is right answer

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