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18-02-2021
Mathematics

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Find the cost of painting a wall of side 80 meters at the rate of Rs.8 per sq. m.

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richeshagreen2801 richeshagreen2801

18-02-2021

Answer:

Area of wall = length × breadth

Here, length = 80 m and breadth = 15 m.

= 80 × 15 sq. m.

= 1200 sq. m.

Therefore, painting the wall = area × cost per square unit.

Given, rate = $ 4 per sq. m.

= 1200 × 4

= $ 4800.

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