Engineering Board Exam Reviewer · Percentage & Ratio Problems · medium

Asyong spent 10% of his salary on transportation expenses, 20% of his salary on food. He then spent 30% of the rest of his salary on rentals of his apartment. What percentage of his salary did he spend altogether?

1. 51%
2. 46%
3. 42%
4. 57%

Answer

A. 51%

Solution

Start with 100. Transportation = 10, Food = 20, remaining = 70. Rentals = 30% of 70 = 21. Total spent = 10+20+21 = 51%.

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