A solar panel installation reduces electricity costs by 40%. If the original cos

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Question: A solar panel installation reduces electricity costs by 40%. If the original cost was $500 per month, what will be the new cost after the reduction?

Options:

$300
$250
$350
$400

Correct Answer: $250

Solution:

40% of $500 = 0.40 * 500 = $200. New cost = 500 - 200 = $300.

A solar panel installation reduces electricity costs by 40%. If the original cos

Practice Questions

A solar panel installation reduces electricity costs by 40%. If the original cost was $500 per month, what will be the new cost after the reduction?

$300
$250
$350
$400

Questions & Step-by-Step Solutions

A solar panel installation reduces electricity costs by 40%. If the original cost was $500 per month, what will be the new cost after the reduction?

Step 1: Identify the original cost of electricity, which is $500 per month.
Step 2: Calculate 40% of the original cost. To do this, multiply 0.40 by 500.
Step 3: Perform the multiplication: 0.40 * 500 = $200.
Step 4: Subtract the amount saved ($200) from the original cost ($500) to find the new cost.
Step 5: Perform the subtraction: 500 - 200 = $300.
Step 6: The new cost of electricity after the reduction is $300 per month.

Percentage Calculation – Understanding how to calculate a percentage of a given amount and apply it to find a new value.
Subtraction of Costs – Applying the calculated percentage reduction to the original cost to find the new cost.

A solar panel installation reduces electricity costs by 40%. If the original cos

What’s inside this PDF?

A solar panel installation reduces electricity costs by 40%. If the original cos

Practice Questions

Questions & Step-by-Step Solutions

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