Balls of marbles of diameter 1.4 cm are dropped into a cylindrical bea – McqOptions

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1.	Balls of marbles of diameter 1.4 cm are dropped into a cylindrical beaker containing some water and fully submerged. The diameter of the beaker is 7 cm. Find how many marbles have been dropped in it if the water rises by 5.6 cm?
A.	50
B.	150
C.	250
D.	350
Answer» C. 250

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