Question

800 becomes Rs. 956 in 3 years at a certain rate of simple interest. If the rate of interest is increased by 4%, what amount will Rs. 800 become in 3 years?
(a) Rs. 1020.80
(b) Rs. 1025
(c) Rs. 1052
(d) Rs. 1050
(e) None of these

Answer 1

a=p(1+rt)
956=800(1+3r)
so
156=2400r
r=156/2400
r=78/1200=39/600=13/200

so now new rate of interest is 0.065
percentage is 6.5%

so new percentage becomes 6.5+4=10.5

s=800(1+3*0.105)
s=800*1.315
=1052


c is the correct option

Answer 2

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