It costs Rs 240 to lay bricks in a rhombus shaped ground at the rate of 60 paise per square metre.

The diameter of roller 1.5m long is 84cm. If it takes 100 revolutions to level a playground, find the cost of levelling this ground at the rate of 50 paise per square metre.

The cost of painting a solid sphere at the rate of 50 paise per square metre is Rs. 1232. Find the volume of steel required to make the sphere.

A field in the form of a parallelogram has one side 150 metres and its distance from the opposite side is 80 metres.The cost of watering the field at the rate of 50 paise per square metre is (a) Rs 3500(b) Rs 5000 (c) Rs 6000 (d) Rs 7000

The cost of levelling a rhombus shaped field at the rate 60 paise per cm^2 is Rs. 120. If the length of its one diagonal is 25 cm, then find the length of other diagonal.

The diameter of a roller 120cm long is 84cm. If it takes 500 complete revolutions to level a playground,determine the cost of levelling it at the rate of 30 paise per square metre.

The cost of fencing a square field at 60 paise per metre is Rs.12000 .Find the cost of reaping the field at the rate of 50 paise per 100 sq. metres.

Cost of fencing a circular plot at the rate of Rs 15 per metre is Rs 3300. What will be the cost of fencing the plot at the rate of Rs 100 per square metre? (a) Rs 2,20,000 (b) Rs 3,50,000 (c) Rs 3,85,000 (d) Cannot be determined (e) None of these

The cost of papering the walls of a room 12 m long at the rate of Rs. 13.50 per square metre is Rs. 3402 and the cost of matting the floor at Rs. 9.50 per square metre is Rs. 1026. Find the height of the room.

One side of a square field is 179m. Find the cost of raising a lawn on the field at the rate of Rs 1.50 per square metre.

What is the length of outer boundary of the park shown in Fig. 6.16? What will be the total cost of fencing it at the rate of Rs 20 per metre? There is rectangular flower bed in the centre of the park. Find the cost of manuring the flower bed at the rate of Rs 50 per square metre.