Question

A carpet is 30m75 cm long and 80cm.find it's cost at rupees 150 per square metre.

Answer 1

first use the formula of area of rectangle(as carpets r rectangle in shape).
area of rectangle=l x b
                           =30.5 x 80
                           =2440 sq. m
now,
=2440 x 150
=3,66,000 rs.