An electric company provides a special rate for electricity consumed from 9 p.m. to 7 a.m. on weekdays, as well as all day on Saturdays and Sundays. What fraction of the week does this special rate cover?

Answer Choices

Correct answer marked below

1/2

5/8

3/7

7/12

Correct

11/12

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Explanation

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Official Explanation

Official

The duration from 9 PM to 7 AM is 10 hours. The total hours with the special rate are calculated as follows: (10 hours * 5 weekdays) + (24 hours * 2 weekend…

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Comments

RoccoApr 19, 2024

Can you explain more?

LightingFeb 23, 2025

Great question!

What this question tests

What it tests

Your ability to convert between fractions, ratios, and decimals and to reason proportionally.

Common trap

Cross-multiplying incorrectly or mixing up the ratio parts — a part:part ratio is not a fraction of the whole.