How long will a man take to walk around the boundary of a square field of area 25 hectares at the rate of 5 km/hr ?

The area of a square field is 49 hectares. Find the cost of fencing it with wire at ₹21.50 per metre.

A plank of wood 4.25 m long and 3.4 m wide is to be cut into square pieces of equal size. How many square pieces of largest size can be cut from the plank, if no wastage is allowed ?

What is the time taken by a person to cover one round of a circular park of diameter 210 m if he walks at a speed of 6 km/hr? (Take π = 22/7)

The ratio of the angles ∠A and ∠B of a non-square rhombus ABCD is 4 : 5, the value of ∠C will be

A rectangular field 50 metres long and 42 metres broad contains a rectangular lawn inside it surrounded by a gravel path of uniform width. If the width of the path is 6 m, then the area of the path is