Question

Find the number of bricks to be laid in a square path of side 25 cm, if the side of each brick is 5 cm. ( A ) 22 ( B ) 25 ( C ) 23 ( D ) 26

Answer 1

Answer: Opt. B) 25

Step by step explanation:

Given:

Side of square path = 25 cm

To find: Number of bricks to be laid in square path.

We know that ,

Area of square = Side × Side

.°. Area of the square path = 25 x 25 = 625 sq. cm.

Side of the brick = 5 cm.

Area of the side brick = 5 x 5 = 25 sq. cm.

Thus,

Total number of bricks required = Area of the square path/ Area of the side brick.

= 625/25

= 25 bricks

Hence, Opt.B) 25 bricks.

Answer 2

The number of bricks to be laid in the square path = 25

Given :

A square path of side 25 cm and the side of each brick is 5 cm.

To find :

The number of bricks to be laid in the square path is

(A) 22

(B) 25

(C) 23

(D) 26

Formula :

For square of side a unit

The area of the square = a² sq.unit

Solution :

Solution :Step 1 of 3 :

Calculate area of the square path

Length of the side of the square path = 25 cm

∴ Area of the square path

= Side²

= 25² cm²

= 625 cm²

Step 2 of 3 :

Calculate area of each brick

Length of the side of each brick = 5 cm

∴ Area of each brick

= Side²

= 5² cm²

= 25 cm²

Step 3 of 3 :

Calculate number of bricks to be laid in the square path

∴ Number of bricks to be laid in the square path

$\displaystyle \sf = \frac{625}{25}$

$\displaystyle \sf = 25$

Hence the correct option is (B) 25

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