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What is the answer to the fourth question on page 40 of the fifth grade mathematics in primary school?
9 times 7+(9 times 3.5+7 times 3.5) times 2.

=175m2

175-23= 152 (m2)

152 times 16=2432 (square meter)

A: The area to be painted is 2432 square meters.

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