Mathematics Class - 9>Chapter 15 - Cube and Cuboid>Exercise>Q 9

HARD

9th Chhattisgarh Board

IMPORTANT

Earn 100

A cuboid is made by joining the edges of three identical cubes each having a volume of $125 {cm}^{3}$ . Find the total surface area of the cuboid in square centimetre thus formed?

50% studentsanswered this correctly

Important Questions on Cube and Cuboid

HARD

9th Chhattisgarh Board

IMPORTANT

Mathematics Class - 9>Chapter 15 - Cube and Cuboid>Exercise>Q 10

A water body is of cuboidal shape of (Cuboid is a right-angled parallelepiped). Its length

20 m

. When

18 k l

water is taken out of the water body, its level goes down by

15 cm

. Find the breadth of the water body.

HARD

9th Chhattisgarh Board

IMPORTANT

Mathematics Class - 9>Chapter 15 - Cube and Cuboid>Exercise>Q 11

A

10 m

long,

4 m

high and

24 cm

thick wall is to be constructed in an open ground. If the wall is to be built using bricks of the size

24 cm \times 12 cm \times 8 cm

, then how many bricks will be needed?

HARD

9th Chhattisgarh Board

IMPORTANT

Mathematics Class - 9>Chapter 15 - Cube and Cuboid>Exercise>Q 12

Find out the expenditure on digging a cuboidal pit of

8 m

length,

6 m

width and

3 m

depth. If the cost of digging is

₹ 30

per cubic metre.

MEDIUM

9th Chhattisgarh Board

IMPORTANT

Mathematics Class - 9>Chapter 15 - Cube and Cuboid>Exercise>Q 13

The dimensions of a godown are

60 m \times 25 m \times 10 m

. What is the maximum number of wooden crates of dimensions

1.5 m \times 1.25 m \times 0.5 m

that can be stacked in this godown?

MEDIUM

9th Chhattisgarh Board

IMPORTANT

Mathematics Class - 9>Chapter 15 - Cube and Cuboid>Exercise>Q 14

A solid cube of side

12 cm

is cut into

8

identical cubes each having the same volume. What will be the side of the new cubes? Also find out the surface area of both the cubes?

HARD

9th Chhattisgarh Board

IMPORTANT

Mathematics Class - 9>Chapter 15 - Cube and Cuboid>Exercise>Q 15

Mary wants to keep her Christmas tree in a wooden box covered with coloured paper. She wants to know how much paper she needs to buy. The above mentioned box is $80 cm$ long, $40 cm$ wide and $20 cm$ high. And if the paper is $40 cm$ square sheets then how many sheets are needed.

Question Image