A rectangular field has area equal to 150 sq m and perimeter 50 m. Its length and breadth must be________?

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If the height of a triangle is decreased by 40% and its base is increased by 40% what will be the effect on its area?

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A swimming bath is 24 m long and 15 m broad. When a number of men drive into the bath. The height of water rises by 1cm. If the average volume of water displaced by each man be 0.1m3 how many mean are there in the both?

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A rectangular lawn of dimensions 80 m * 60 m has two roads each 10 m wide running in the middle of the lawn, one parallel to the length and the other parallel to the breadth. What is the cost of traveling the two roads at Rs.3 per sq m?

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The radius of a semi circle is 6.3 cm then its perimeter is?

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If the diameter of a circle is increased by 100 % its area is increased by:_________?

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