A circular swimming pool is surrounded by a concrete wall 4 ft. wide. If the area of the concrete wall surrounding the pool is `(11)/(25)` that of the pool, then the radius of the pool is (a) 8 ft (b) 16 ft (c) 20 ft (d) 30 ft

A circular swimming pool is surrounded by a concrete wall 4m wide. If the area of the concrete wall surrounding the pool is (11)/(25) that of the pool, then the radius (in m) of the pool is :

The areas of two circular fields are in the ratio 16:49. If the radius of the latter is 14 m, then what is the radius of the former? (a) 4 m (b) 8 m (c) 18 m (d) 32 m

Area of the canvas cloth needed to erect a right conical tent of height 12 ft and circular base having circumference 10pi ft is (a) 60 sq ft (b) 65 sq ft (c) 65pi s q ft (d) 120pi s q ft

A carpenter is designing a table. The table will be in the form of a rectangle whose length is 4 feet more than its width. How long should the table be if the carpenter wants the area of the table to be 45 sq ft? (a) 6 ft (b) 9 ft (c) 11 ft (d) 13 ft

The dimensions of a shop are 12 ft xx 8 ft xx 5 ft. The area of four walls is _______

A stairway 10 ft.high is such that each step accounts for half a foot upward and one foot forward.What distance will an ant travel if it starts from ground level to reach the top of the stairway? (a) 30ft.(b) 33ft.(c) 10 ft. (d) 29 ft.

A swimming pool is 20m long 15m wide and 3m deep. Find the cost of repairing the floor and wall at the rate of Rs. 25per square metre.

A swimming pool is 50 m in length,30 m in breadth and 2.5 m in depth. Find the cost of cementing its floor and walls at the rate of Rs 27 per square metre.