Curioustab

Home » Aptitude » Volume and Surface Area

A tank is 25 m long, 12 m wide and 6 m deep. The cost of plastering its walls and bottom at 75 paise per sq. m, is:

Rs. 456
Rs. 458
Rs. 558
Rs. 568

Correct Answer: Rs. 558

Explanation:

Area to be plastered= [2(l + b) x h] + (l x b)

= [2(25 + 12) x 6] + (25 x 12)

= (444 + 300)

= 744

Cost of plastering = Rs. 744 x (75/100)= Rs. 558

← Previous Question Next Question→

More Questions from Volume and Surface Area

A cistern 6m long and 4 m wide contains water up to a depth of 1 m 25 cm. The total area of the wet surface is:
A boat having a length 3 m and breadth 2 m is floating on a lake. The boat sinks by 1 cm when a man gets on it. The mass of the man is:
What part of the volume of a cube is the pyramid whose base is the base of then cube and whose vertex is the center of the cube?
The surface areas of three faces of a cuboid sharing a vertex are 20, 32 and 40 sq. mts. What is the volume of the cuboid in cub. m?
The two sides holding the right-angle in a right-angled triangle are 3 cm and 4 cm long. The area of its circumcircle will be in sq.cm:
The diameters of two cylinders are in the ratio 3:2 and their volumes are equal. The ratio of their heights is
In a quadrilateral PQRS, l_S= 90°. A circle (o, r) touches the sides PQ, QR, RS and SP at A, B, C and D respectively. If QR= 38 cm, RS = 25 cm and QA = 27 cm, find 'r'.
The least number of square tiles of side 41 cms required to pave the ceiling of a room of size 15m 17cm long and 9m 2 cm broad is:
O is the circumcentre of ΔABC. If AO = 8 cm, then the length of BO is
ABCD is a quadrilateral in which BD and AC are diagonals then

Discussion & Comments

No comments yet. Be the first to comment!

Join Discussion