A rectangular room measuring 3.2 m by2.8 m has a height 2.4 .The walls of the room are to be painted. Find the cost of painting the four walls at target. 15 per square meter.
Answers
Answer:
Step-by-step explanation:
Length : 3.2m
Breadth : 2.8m
Height : 2.4m
Area of four walls = 2(lh+bh)
= 2(3.2*2.4 + 2.8*2.4)
= 2(7.68+6.72)
= 2(14.4)
= 28.8m²
Now, cost of 1m² = ₹15
Cost of 28.8m² =28.8*15
= ₹432
Answer:
Cost of painting the 4 walls is RS.432
Step-by-step explanation:
Given:
Length (l)= 3.2 m.
Breadth (b) =2.8 m.
Height (h) = 2.4 m.
As we know that,
Area of 4 walls =2(l+b) h
= 2(3.2+2.8) ×2.4
= 2×6 ×2.4
= 28.8 sq.m.
Cost of painting four walls= Rs.15 per sq.m.
Total cost of painting 4 walls = area×rate per sq. m.
=28.8 ×15= Rs.432