Question

a carpet is 30 M 75 cm long and 80 cm wide find its cost and rupees 150 per square metre

Answer 1

Length of the carpet = 30 m 75 cm
                           =(30 + 0.75) cm        (100 cm = 1 m)
                           = 30.75 m
Breadth of the carpet = 80 cm
                            = 0.80 m                (100 cm = 1 m)

Area of carpet = ( Length × breadth ) sq units

                            =(30.75 × 0.80) m2= (3075100×80100) m2=24.6 m2

Cost of 1 m2 carpet= Rs 150
Cost of 24.6 m2 carpet = Rs (24.6×150)
                                      =  Rs 3690

                      

Answer 2

Given,
Length= 30 m 75 cm= 30.75 m
Breadth=0.80 cm
So,
Area= l*b= 30.75*0.80 m²
= 24.6 m²
Now,
Cost= 24.6*150= ₹3690

Hope this helps you!