Question

A cuboidal suitcase which measures 80cm x 48cm x 24cm is to be covered with a tarpaulin cloth. How many meters of tarpaulin of width 96 cm is required to cover 100 such suitcases?

Answer 1

The suitcase
l = 80 cm
b = 48 cm 
h = 24 cm
therefore,
Total Surface Area = 2(lb + bh + lh)
= 2 [(80*48) + (48*24) + (80 * 24)]
= 2 (3840 + 1152 + 1920)
= 2 * 6912
= 13824 cm^2


Length of cloth required = (area of suitcase/ breadth) * 100
= (13824/ 96) * 100
= 144 * 100
= 14400 cm
= 14400 /100 m
= 144 m

Answer 2

Hope it helps you.................