Question

The length , breadth and height of a room are 5m 4m and 3m respectively. Find the cost of white washing the ceiling at the rate of Rs.12 per sq.m. *​

Answer 1

Step-by-step explanation:

8p/10=16

We move all terms to the left:

8p/10-(16)=0

We multiply all the terms by the denominator

8p-16*10=0

We add all the numbers together, and all the variables

8p-160=0

We move all terms containing p to the left, all other terms to the right

8p=160

p=160/8

p=20

Answer 2

l=5m

b=4m

h=3m

lsa+l*b=2*(l+b)*h+l*b

=2*(5+4)*3+5*4

=2*9*3+20

=54+20

=74

cost of white washing 1m=rs 7.5

cost of 74m=7.5*74= ₹555