answer my question please!

Answers
Answer:
Heyaa♡♡
Here is the answer.
Hope it helped you.
Please mark it the brain list answer.

Problem:-
7. The cost of carpeting a room 15 m long with a carpet of width 75 cm at ₹ 80 per meter is ₹ 19200. Find the width of the room.
Solution:-
From the question,
Length of the room = 15 m
Width of the carpet = 75 cm = (75/100)m = 0.75 m
Cost of carpet = ₹ 80
Cost of carpeting the room = ₹ 19200
Let the length of the carpet be x m
∴Cost of x m carpet = ₹ (80 × x) = ₹ 80x
Then,
Cost of carpeting the room = ₹ 19200
= 80x = 19200
= x = 19200/80
= x = 240
∴The length of the carpet required for carpeting the room is 240m
Then,
Area of the carpet required for carpeting the room = Length of the carpet × Width of the carpet
= (240 × 0.75) m2
= 180m2
Now,
We have to find width of the room be b m.
Carpeting area = 15 m × b m
= 15b m2
∴ 15b m2 = 180 m2
= b = (180/15) m
= b = 12 m
Hence, the width of the room is 12 m
10 m wide and 5 m high.
*for my handwritten solution,see in the attachments..xD*
Hope it helps you!
@Harshita0531
