a sum of rupees 1780 becomes rupees 2136 in 4 years. find the rate of interest
2. find the sum that will become rupees 810 in 7 years at the same rate of interest
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Answer:
1.
p=1780
a=2136
t=4ys
r=si*100/p*t
si=2136-1780=365
365*100/1780*4
=8percent
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