Answer:

Cost = Area × Rate

= (perimeter × height)× Rate

=(250×4)m

2

×12Rs

=1000×12Rs

=12000Rs

Verified answer

Step-by-step explanation:

QUESTION:-

The perimeter of the floor of a hall is 250 m. If the height is 4 m, find the cost of painting the four walls at the rate of Rs. 12 per square meter.

SOLUTION:-

PERIMETER=250M

HEIGHT=4M

2(L+B)=250

2(L+B)H

AREA OF FOUR WALL =4×250

=1000M²

THEREFORE COST OF PAINTING WALL =12×1000

₹12000

HOPE THIS HELPS YOU DEAR

HAVE A GREAT DAY AHEAD