Question
A sum of Rs.20,000 is invested partly with Bank B under
scheme III and remaining with Bank D under scheme IV for 1 year. If the total interest earned is 8% of the sum invested, find the amount invested with Bank D.Solution
Rate of interest of Bank B under scheme III = 7.5% Rate of interest of Bank D under scheme IV = 10% Through allegation method : 7.5 10 \ / 8 2 : 0.5 4 : 1 So sum invested with Bank D = 1/5 of 20000 = Rs. 4000
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