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Maths-

General

Easy

Question

Kelly enlarged the area of a photograph to 250% of its original size. The original dimensions of the photograph were 5 inches by 7 inches. What is the area of the enlarged photograph, in square inches?

71.25
87.5
218.75
3,000

The correct answer is: 87.5

Step by step explanation:
Given:
Original dimension of photograph = 5 inch × 7 inch
Kelly enlarged the area of a photograph to 250% of its original size.
Step 1:
Find the area of photograph
Photograph is in the form of a rectangle,
So, the area of the photograph = length × breadth
$not stretchy rightwards double arrow 5 cross times 7$
⇒ 35 sq. inches
Step 2:
Find 250% of 35:
$not stretchy rightwards double arrow 250 over 100 cross times 35$
$not stretchy rightwards double arrow 87.5$
∴ 87.5 sq. inches
Hence, enlarged area of the photograph will 87.5 square inches.

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