SSC Government Jobs Exams Numerical Ability Area and Volume

Marbles a diameter 1.4 cm are dropped into a cylindrical beaker containing some water and are 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.

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SSC Other Question

A does half as much work as B in three fourth of the time. If together they take 18 days to complete a work, how much time shall B take to do it alone? Water is flowing at the rate of 3km/hr through a circular pipe of 20 cm internal diameter into a circular cistern of diameter 10m and depth 2 m. In how much time will the cistern be filled?