Question
When two equal amounts are deposited for 7 years and 5
years at the rate of 6% and 8% per annum respectively, the difference of their simple interest is 300rs Then find the deposited amount.Solution
Let the equal amount be P = x and given t₁=7year t₂=5years r₁=6%, r₂=8% now SI₁=x × 7×6/100 =42x/100 SI₂ =x × 5×8/100 =40x/100 ATQ- SI₂-SI₁=300 42x/100-40x/100 = 300 2x/100=300 2x=300×100 x=15000rs
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