Question

The floor of a rectangular hall has a perimeter 250 m and its length and breadth are in the ratio 13:12.If the cost of painting the four walls and ceiling at the rate of 5rs. per square metre is rs.27,000.Find the height of the hall.

Answer 1

WE KNOW PERIMETER IS 250M
AREA TO BE PAINTED = P*H
=250*H
Since the total cost=27000rs at the rate of 5rs /sqm
so total area to be painted = 27000/5
=5400sqm
=250*h=5400
=5400/250=h
=21.6=h
hence height = 21.6

Answer 2

krishnaudhai11584

Answer:21.6

Step-by-step explanation:

Perimeter=250

LSA of a cuboid = 27000

=27000/5

=5400sqm

=250*h=5400

=5400/250=h

=21.6=h

Answer:height = 21.6