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ADITYA KUMAR from CSDAV PUBLIC SCHOOL, MOTIHARI
Subject :NSO    Class : Class 9

A cylindrical tub of radius 16 cm contains water to a depth of 30 cm. A spherical iron ball is dropped into the tub and thus level of water is raised by 9 cm. What is the radius of the ball?

A14 cm
B18 cm
C12 cm
D20 cm


Ans 1:

Nirmal joshi from New Beersheba, Pithoragarh
Class : Class 9
The answer is 12cm

Ans 2:

Nirmal joshi from New Beersheba, Pithoragarh
Class : Class 9
The answer is 12cm

Ans 3:

abhijeet mishra from bhubaneswar model public school, bhubaneswar
Class : Class 10
the answer is 12 cm

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