1.

5.What should be the least number of years in which2the simple interest on Rs.2600 at 61% will be an exactnumber of rupees ?(a) 2(b) 3(c) 4(d) 5

Answer»

Option-B

SI = Pnr/100, P=Interest, n= Number of years, r = rate of interestHere P = 2600, r = 20/3For n=1 and n=2, the interest amount will be 173.33 and 346.66 respectively.For n = 3, Interest = 520The least number of years at which the interest amount is whole number is Rs.520.

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