Find the cost of papering a room 8m long, 6m wide and 4m high with paper 80cm wide at the rate of ₹120 per piece of 5m.
Answers
Answer:
the cost of papering a room 8m long, 6m wide and 4m high with paper 80cm wide at the rate of ₹120 per piece of 5m is Rs 3360
Step-by-step explanation:
Papering should be done on the walls.
In this case we have four walls which need papering.
Since the width of the paper is fixed, we need to get the number of pieces that can fit each wall.
The height of the walls is 4 m. So, we need the number of 80 cm widths that can fit in this height.
To work with the same units, we convert the cm into meters as follows:
80/100 = 0.8 m
The number of pieces that can fit each wall are:
4/0.8 = 5 pieces.
We have two sets of walls:
- The 8 m length and 6 m length.
For the two sides measuring 6 m, the total length of the paper is: 6 × 5 × ×2 = 60 m
For two sides measuring 8 m we have: 8 × 5 × 2 = 80 m
The total length of the paper = 80 + 60 = 140 m
The rate is Rs 120 per 5 m so the total cost is given by:
140/5 × 120 = Rs 3360
Answer:
3370 is answer of this question.