a man deposits $ 2000 in a bank at 4 % per annum and $ 3000 in uti at 14 % per annum . find the rate of interest for the whole sum .
following the above formula , we have the rate of interest for the whole sum = ( 2000 * 4 ) + ( 3000 * 14 ) / 2000 + 3000 = 50000 / 5000 = 10 % . answer is d
multiply(const_100, divide(subtract(add(p_after_gain(4, 2000), p_after_gain(14, 3000)), add(2000, 3000)), 3000))