Q71 Garden of radius 50m radius is to be covered with lush green grass the cost of covering 1msq area is 85Rs find the total cost

Q72 Garden of radius 50m radius is to be covered with lush green grass.One labour can cover 140msq area in one day so find the number of labour required to finish the task in one day .

Q73 Garden of radius 50m radius is to be covered with lush green grass.One labour can cover 140msq area in one day so find the number days required by the 10 labour to finish the job

Q74 A tread 2 m long is to be rolled around a circular ring of radius 35 cm . Find the number of turn required to roll the entire thread

Q75 Find the cost of flooring a room of radius 17 m and cost of flooring of 1sq m area is 10rs

Q76 In a circular park of 105 m radius two circular water fountain are to be installed . For this purpose 14m radius circular area has to be floored . Find the area that has to be floored

Q77 In a circular park of 105 m radius two circular water fountain are to be installed . For this purpose 14m radius circular area has to be floored and the remaining area is covered by soil . find the area that has to be covered by the soil

Q78 In a circular park of 105 m radius two circular water fountain are to be installed . For this purpose 14m radius circular area has to be floored and the remaining area is covered by soil . If one truck of filled with soil can cover 300m sq area find the total number of truck required to cover the ground.

Q79 A car has wheel of radius 56cm find the number of turns made by the wheel to cover a distance of 10 km .

Q80 If the perimeter of the circle is 88 cm .find the largest length that can be drawn from one point of circle to other .