Multiple choice

The price of sugar is increased by 17%. A person wants to increase his expenditure by 8% only. By what percent should he decrease his consumption, nearest to one decimal place?

  1. 7.9%

  2. 8.3%

  3. 8.1%

  4. 7.7%

  5. 15.8%

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Let initial price = 100, consumption = 100, expenditure = 10000. New price = 117. New expenditure = 10800. New consumption = 10800 / 117 = 92.307. Decrease = 100 - 92.307 = 7.69%, which rounds to 7.7%.