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

See the full step-by-step explanation

You can see the correct answer above. Sign in for free to unlock the complete worked solution.

Track your performance and improve

Get detailed analytics, unlock full explanations, and move up difficulty tiers as you practice.

Start for free Sign in

Explanation

Preview

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…

Read the full explanation

Create free account Sign in

Comments

RoccoApr 19, 2024

Can you explain more?

LightingFeb 23, 2025

Great question!

ClairinAug 2

Wait, do they count weekdays as Mon-Fri only? I keep getting confused about the weekend part.

EnioluwafeAug 15

Yep, weekdays = Mon to Fri. Weekend is all day Sat + Sun, so don't forget those full days.

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.