Question

a poster of size 20 CM by 18 cm is posted on a cardboard sheet by taking a marking of 2.4 cm along each side of the poster find the total area of mark in the cost of the cardboard used at the rate of 4.50 per CM square.

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Answer 1

Area = 2.4*100 + 2.4 * 90 - 2.4 Square

Area = 240 + 216 - 5.76

Area = 456 - 5.76

Area = 450.24

Area =100*90-(2.4*100)-2.4*90 + 2.4 square

= 8549.76

• Hence we can say that area is 450.24 and price is 8549.76