find the cost of painting the all around the outer surface of a box with lid 60 cm long 40 cm wide and 30 cm high at 50 rupee per 20 CM square
Answers
Answered by
1
TSA of cuboid is 2(lb+bh+hl)
=2(60×40+40×30+30×60)
=10800cmsquare
cost of painting 20sq.cm is rs50
so,10800÷20×50 is the cost of painting the floor
i.e. =540×50=27000rs.
so the cost of painting is 27000rs.
hope it helps : )
=2(60×40+40×30+30×60)
=10800cmsquare
cost of painting 20sq.cm is rs50
so,10800÷20×50 is the cost of painting the floor
i.e. =540×50=27000rs.
so the cost of painting is 27000rs.
hope it helps : )
Similar questions