Question

Find the cost of painting a cuboid of dimensions 20cm x 15 cm x 12 cm at the rate of 5, paisa per square centimeter.​

Answer 1

Answer:

i think the answer is 180 rupees

Step-by-step explanation:

20×15×12=3600

3600×5=18000

18000÷100= 180 ( as the rate per square centimeter is in paise)

Answer 2

Answer:

Area=1440$cm^2$

Cost=72 rupees

Step-by-step explanation:

Length of Cuboid=20cm

Breadth=15cm

Height=12cm

Area of cuboid=2(lb+bh+lh)

                         =2(20*15+15*12+20*12)

                         =2(300+180+240)

                         =2(720)

                         =1440$cm^2$

Cost of painting at the rate of 5paise=1440*5

                                                                =7200paise

                                                                =7200/100

                                                                =72 rupees

Thank You.........