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Amita wants to make rectangular cards measuring 8cm × 5cm. She has a square chart paper of 60cm. How many complete cards can she make from this chart?

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answer is D.

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Detailed Solution

Given that,
Length of the rectangular card = 8 cm,
Breadth of the rectangular card = 5 cm,
Length of the square chart paper = 60 cm.
Question Image

The square chart paper can be divided into 7 parts. Each of length 8 cm along one side of chart paper and exactly in 12 parts each of length 5 cm alongside of chart paper.
Then,
Number of cards made from the chart = 12

\times

7
= 84
Therefore, the number of cards is 84.
Hence, option (4) is correct.

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