a sum of Rs 1780 becomes Rs 2136 in 4 years. Find :- (1.) the rate of interest (2.) the sum that will become Rs 810 in 7 years at the same rate of interest.
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P=1780
A=2136
S I=2136-1780=356
S I=P×R×T/100
356=1780×4×R/100
(1)R=5%
(2)
let sum =p
A=810
si=810-p
si=p×5×7/100
810-p=35p/100
81000-100p=35p
135p=81000
p=600
A=2136
S I=2136-1780=356
S I=P×R×T/100
356=1780×4×R/100
(1)R=5%
(2)
let sum =p
A=810
si=810-p
si=p×5×7/100
810-p=35p/100
81000-100p=35p
135p=81000
p=600
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Answer:
Ans)1) 5% 2) Rs 600 this is superrrrrrrrrrrrrr
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