26
Q:

# The size of the wooden block is 5 x 10 x 20 cm .How many such blocks will be required to construct a solid wooden cube of minimum size?

 A) 6 B) 8 C) 12 D) 16

Explanation:

Side of smallest cube = L.C.M of 5, 10, 20 = 20cm

Volume of the cube = (20 x 20 x 20)cu.cm = 8000 cu.cm

Volume of the block= (5 x 10 x 20)cu.cm = 1000 cu.cm

Number of blocks = (8000/1000) = 8

Q:

Which measurement unit represents volume?

 A) milliliter B) Cubic centimeter C) Meter cube D) All of the above

Explanation:

3 186
Q:

The areas of three consecutive faces of a cuboid are 12 cm², 20cm² and 15 cm², then the volume (in cm³) of the cuboid is

 A) 60 B) 55 C) 45 D) 40

Explanation:

From the given data,

let the length, breadth and height of the cuboid are m, n, r

m x n = 12

n x r = 20

r x m = 15

Hence, m x n x n x r x r x m = 12 x 20 x 15

mnr = sqrt of (12x20x15) = 60 cub.cm.

6 276
Q:

If the area of three Adjacent faces of a cuboidal box are 120 cm², 72 cm², and 60 cm² respectively, then the volume of the box is

 A) 640 cub.cm B) 720 cub.cm C) 860 cub.cm D) 945 cub.cm

Explanation:

1 382
Q:

Solve the triangle b=36 a=38 c=18 for perimeter of the triangle?

 A) 74 units B) 92 units C) 56 units D) 54 units

Explanation:

We know, the perimeter of a triangle = sum of all the sides of a triangle = a + b + c

Here given that sides a = 38, b= 36 and c = 18

Now, perimeter of the triangle = a + b + c = 38 + 36 + 18 = 92 units.

3 392
Q:

The circumference of a circular base of Cylinder is 44 cm and its hight is 15 cm. Then the volume of the cylinder is?

 A) 2759 cub. cm B) 2247 cub. cm C) 2614 cub. cm D) 2311 cub. cm

Explanation:

Given Circumference of a circular base of a cylinder = 44 cm

We know that Circumference of a circle =

Now given the height of a cylinder h = 15 cm

19 1686
Q:

What is the Formula for Volume?

The formula to find the volume is given by just multiplying Length, Breadth and Height of that object.

Thus, V = L x B X H

Volume Formulae :

1. Volume of Cube of side 's' = s x s x s = $s3$  cubic units.

2. Volume of Cylinder$πR2h$ cubic units.

[Where is Radius and h is height]

1507
Q:

If radius and height of a cylinder increase by 20% and15% respectively. then what is the % change in curved surface area?

 A) 41% B) 38% C) 33% D) 44%

Explanation:

% Change in Curved Surface Area is given by

17 4129
Q:

A town has a population of 4000 requires 140 liters of water per head. It has a tank measuring 18m x 12m x 8m. The water of this tank will suffice for ____ days?

 A) 3 B) 4 C) 5 D) 2