MEDIUM
10th CBSE
IMPORTANT
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Sushant has a vessel, of the form of an inverted cone, open at the top, of height 11cm and radius of the top as 2.5 cm and is full of water. Metallic spherical balls each of diameter 0.5 cm are put in the vessel due to which 25th of the water in the vessel flows out. Find how many balls were put in the vessel. Sushant made the arrangement so that the water that flows out irrigates the flower beds. What value has been shown by Sushant?

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Important Questions on Surface Areas and Volumes

EASY
10th CBSE
IMPORTANT
MATHEMATICS CLASS X>Chapter 14 - Surface Areas and Volumes>EXERCISE 14.1>Q 48
16 glass spheres each of radius 2 cm are packed into a cuboidal box of internal dimensions 16 cm×8 cm×8 cm and then the box is filled with water. Find the volume of water filled in the box in decimal number and in cm2.
EASY
10th CBSE
IMPORTANT
MATHEMATICS CLASS X>Chapter 14 - Surface Areas and Volumes>EXERCISE 14.1>Q 49
Water flows through a cylindrical pipe, whose inner radius is 1 cm, at the rate of 80 cm/sec in an empty cylindrical tank, the radius of whose base is 40 cm. The rise of water level in tank in half an hour is k cm, then find k.
EASY
10th CBSE
IMPORTANT
MATHEMATICS CLASS X>Chapter 14 - Surface Areas and Volumes>EXERCISE 14.1>Q 50
Water in a canal 1.5m wide and 6m deep is flowing with a speed of 10 km/hr. If k m2 area will it irrigate in 30 minutes if  8cm of standing water is desired, then find k.
EASY
10th CBSE
IMPORTANT
MATHEMATICS CLASS X>Chapter 14 - Surface Areas and Volumes>EXERCISE 14.1>Q 51
A farmer runs a pipe of internal diameter 20 cm from the canal into a cylindrical tank in his field which is 10 m in diameter and 2 m deep. If water flows through the pipe at the rate of 3 km/h and the tank is filled in k minute time then find k.
EASY
10th CBSE
IMPORTANT
MATHEMATICS CLASS X>Chapter 14 - Surface Areas and Volumes>EXERCISE 14.1>Q 52
A cylindrical tank full of water is emptied by a pipe at the rate of 225 litres per minute. If the time taken to empty half the tank is k minutes, when the diameter of its base is 3 m and its height is 3.5 m, then find the value of k. (Assume π=227)
EASY
10th CBSE
IMPORTANT
MATHEMATICS CLASS X>Chapter 14 - Surface Areas and Volumes>EXERCISE 14.1>Q 53
Water is flowing at the rate of 2.52 km/h through cylindrical pipe into a cylindrical tank, the radius of the base is 40 cm. If the increase in the level of water in the tank, in half an hour is 3.15 m If the internal diameter of the pipe is k cm, then find k.
MEDIUM
10th CBSE
IMPORTANT
MATHEMATICS CLASS X>Chapter 14 - Surface Areas and Volumes>EXERCISE 14.1>Q 54
Water flows at the rate of 15 km/h through a pipe of diameter 14 cm into a cuboidal pond which is 50 m long and 44 m wide. In k hr  time level of water in the pond will rise by 21 cm then find k. 
EASY
10th CBSE
IMPORTANT
MATHEMATICS CLASS X>Chapter 14 - Surface Areas and Volumes>EXERCISE 14.1>Q 55
A canal 300 cm wide and 120 cm deep. The water in the canal is flowing with a speed of 20 km/h. If it irrigates k hectares of area in 20 minutes and 8 cm of standing water is desired then find k.