a certain sum of money amounts to rupees 1260 1n 2 years for 2 rupees, 1350 in 5 years. find the sum and rate of interest.

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Solution

SI for 3 years = 1350 – 1260 = 90
Ie SI for one year = 30
SI for two years = Rs 60
Amount = P + SI
1260 = P + 60
P = 1260 – 60 = Rs. 1200
Ie, the principle amount = Rs. 1200

To find out the rate of SI,
SI = PNR
R = SI / (P* N)
= 30 / (1200 *1)
= 2.5 %

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a certain sum of money amounts to rupees 1260 1n 2 years for 2 rupees, 1350 in 5 years. find the sum and rate of interest.

SI for 3 years = 1350 – 1260 = 90Ie SI for one year = 30SI for two years = Rs 60Amount = P + SI1260 = P + 60P = 1260 – 60 = Rs. 1200Ie, the principle amount = Rs. 1200 To find out the rate of SI,SI = PNRR = SI / (P* N) = 30 / (1200 *1) = 2.5 %

SI for 3 years = 1350 – 1260 = 90
Ie SI for one year = 30
SI for two years = Rs 60
Amount = P + SI
1260 = P + 60
P = 1260 – 60 = Rs. 1200
Ie, the principle amount = Rs. 1200

To find out the rate of SI,
SI = PNR
R = SI / (P* N)
= 30 / (1200 *1)
= 2.5 %