The sum of money amount to rs 5200 in 5years and to rs.5680 in 7years at simple interest .the rateof interest per annum is
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Heya friend here is your answer
P + SI for 5 years = 5200…………(I) P + SI for 7 years = 5680…………(II) On subtracting equation (I) from (II) SI for 2 years = 480 ∴ SI for 1 years = 240 ∴ From equation (I), P + 5× 240 = 5200
P=5200-1200
=4000
R=si×100/p×t
=240×100/2×4000
=6% hope it helps to you.
P + SI for 5 years = 5200…………(I) P + SI for 7 years = 5680…………(II) On subtracting equation (I) from (II) SI for 2 years = 480 ∴ SI for 1 years = 240 ∴ From equation (I), P + 5× 240 = 5200
P=5200-1200
=4000
R=si×100/p×t
=240×100/2×4000
=6% hope it helps to you.
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