Question

A family spends 1⁄10 of its annual income for housing, 1⁄4 for food and clothing, 1⁄5 for general expenses, and 2⁄15for entertainment. What fractional part of their income is spent on these items altogether?

Answer 1

Add up 0.10, .25, .20 and 0.133:

0.6833, or about 68% of their income.