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A road roller of diameter 7m and height is 1m rolled 50 times in a field, then area of the field covered is

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1100

m^{2}

1200

m^{2}

1000

m^{2}

900

m^{2}

answer is B.

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Detailed Solution

Area of the field covered= $π d h \times 50 = \frac{22}{7} \times 7 \times 1 \times 50 = 1100 m^{2}$

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