Question

A blackboard of sides 2m 25 cm and 1 meter 50 cm is to be painted .find the cost of painting at the rate of ru.15 per squate meter.

Answer 1

given = l= 2.25m

b=1.5m

rate=₹15 per m^2

To find = cost of painting

solution=

ar(rectangle)=l×b

= 2.25×1.5

=3.375m^2

cost= ar×rate

= 3.375×15

= ₹50.625