A boundary line, 200 cm long and of height of a single brick, is to be built. How many bricks are needed, if one brick is 10 cm long and are placed one after the other?

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Solution

The correct option is C 20
Total length of the boundary = 200 cm
Length of one brick = 10 cm
Now,
Total length = Length of one brick $\times$ Number of bricks
So, number of bricks required is,
= Total length ÷ Length of one brick
= 200 ÷ 10
= 20
Thus, 20 bricks are required.

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A boundary line, 200 cm long and of height of a single brick, is to be built. How many bricks are needed, if one brick is 10 cm long and are placed one after the other?

The correct option is C 20Total length of the boundary = 200 cm Length of one brick = 10 cm Now, Total length = Length of one brick × Number of bricks So, number of bricks required is, = Total length ÷ Length of one brick = 200 ÷ 10 = 20 Thus, 20 bricks are required.

The correct option is C 20
Total length of the boundary = 200 cm
Length of one brick = 10 cm
Now,
Total length = Length of one brick $\times$ Number of bricks
So, number of bricks required is,
= Total length ÷ Length of one brick
= 200 ÷ 10
= 20
Thus, 20 bricks are required.