Question

Alex spends 20% of his income on food items and 12% on conveyance. If for the month of June 2010, he spent ₹900 on conveyance, find his expenditure on food items during the same month. 

Answer 1

Let Alex spent ₹ x during June 2010 on food items. 

∴ 20 : x = 12 : 900

∴ `20/x = 12/900`

∴ `x = (20 xx 900)/12`

∴ x = 1500

∴ Alex's expenditure on food items during 2010 must be ₹ 1500.