Question

1)the area of a square plot is 125 m square. Find the length of one side of the plot. 2)135.25 m square of carpet was used for carpeting a square room. Find the side of the room. 3)Find the square root of the 28.09 using division method

Answer 1

Answer:

The cost of carpeting a room 15 m long with a carpet of width 75 m at Rs. 80 per metre is Rs. 19200 . Find the width of the room

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ANSWER

Given,

a carpet length=15m

width of carpet=75m

cost of carpet=80Rs. p.m.

Total cost=19,200 Rs.

also, given, to find out the width of the room.

Let, the width of the room be 'b' mt.

∴ Area of the room=L×b=15×b=15bm

2

(∵ Area of □le=L×b)

Length of the carpet=

cost per mt

total cost

=

80

19200

Length of the carpet=240mt

as given 'W' of the carpet=75m

Area of the carpet=240×75=18000

Area of the room=Area of carpet

⇒15b=18000

b=

15

18000

=1200mt

∴ The width of the room=1200mt or 12cm.

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Answer 2

Answer:

the area of a square plot is 125. 44 m find the length of one side of plot