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Aptitude - Arithmetical Ability

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31.

If the capacity of a cylindrical tank is 1848 m³ and the diameter of its base is 14m, then find the depth of the tank.

A.	10m	B.	8m
C.	12m	D.	16m

32.

If the radius of a sphere is increased by 50%, find the increase percent in volume and the increase percent in the surface area.

A.	125%	B.	50%
C.	60%	D.	80%

33.

In a shower, 5 cm of rain falls. The volume of water that falls on 1.5 hectares of ground is:

A.	75 cu. m	B.	750 cu. m
C.	7500 cu. m	D.	75000 cu. M

34.

Is a given rectangular block, a cube?
I. At least 2 faces of the rectangular block are squares.
II. The volume of the block is 64.

A.	I alone sufficient while II alone not sufficient to answer	B.	II alone sufficient while I alone not sufficient to answer
C.	Either I or II alone sufficient to answer	D.	Both I and II are not sufficient to answer

35.

Spheres A and B have their radil 40 cm and 10 cm respectively. The ratio of the surface area of A to the surface area of B is

A.	1:04	B.	1:16
C.	4:01	D.	16:01

36.

The cost of painting the whole surface area of a cube at the rate of 13 paise per Sq.cm is Rs. 343.98. Then the volume of the cube is

A.	8500cm^3	B.	9000cm^3
C.	9250cm^3	D.	9261cm^3

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