A family consumes Rice, Daal and Wheat. The ratio of its expenditure is 12 : 17 : 3. If the price of those commodities increases by 20%, 30% and 50% respectively. By how much expenditure will be increased of that family.
Daal=Pulses
Can anyone give any idea how to proceed?
$12/32 + 17/32 + 3/32 = 1$
$(12*1.2)/32 + (17*1.3)/32 + (3*1.5)/32 = x$
$(x - 1)*100 = $ percentage increase in expenditure