Question

the total cost of flooring a room at rupees 85 per square metre is rupees 5100 if the length of the room is 8 M find its breadth

Answer 1

Hi friend
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Your answer
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COST OF FLOORING PER SQ. METRE = RS 85

TOTAL EXPENDITURE = RS 5100

THUS,
AREA OF THE ROOM = TOTAL EXPENDITURE / RATE PER SQUARE METRE
= 5100/85 m²
= 60m²

NOW,
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LENGTH OF THE ROOM = 8 m

SO,
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LENGTH × BREADTH = 60
8× BREADTH = 60
BREADTH = 60/8m
BREADTH = 7.5m

HOPE IT HELPS

#ARCHITECTSETHROLLINS

Answer 2

Breadth of room is 7.5 meters.

Given:

• The total cost of flooring a room at rupees 85 per square metre is rupees 5100.
• If the length of the room is 8 metre.

To find:

• Find its breadth.

Solution:

Formula to be used:

Area of floor(rectangle)= length×breadth

Step 1:

Find total area of floor.

As,

For every m² 85 rupees were charged.

So,

Area of floor $= \frac{5100}{85}$

or

Area of floor$\bf = 60 \: {m}^{2}$

Step 2:

Find breadth of room.

As length of room is 8 m.

So,

$8 \times b = 60$

or

$b = \frac{60}{8}$

or

$\bf b = 7.5 \: m$

Thus,

Breadth of room is 7.5 meters.

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