Question
A bank charges simple interest for Rs. K at the rate of
r1/2 for n² years. Another bank charges simple interest for Rs.L at the rate of r3/2  for n³ years and gives the same interest. The ratio between K and L is:Solution
ATQ,
Iā = K Ć (r/2) Ć n² /100 Iā = L Ć (3r/2) Ć n³ /100 Iā = Iā ā cancel (r/2) and 100 KĀ·n² = 3LĀ·n³ ā K/L = 3n Ratio K : L = 3n : 1
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