Question

A switcase with measure 40cm×24cm×12cm is to be covered with a trapulin clothes how many meter of trapulin of width 48cm is required to cover 100 such suitcase

Answer 1

Answer:

to find the area of cloth to be covered on the suitcase we fill need to find suicase's total surface area

t.s.a of rectangle=2(lb+bh+hl)

where l is length b is breadth and h is heigth

here l=40cm b=24cm h=12 cm

so,

2(40*24+24*12+12*40)

= 2( 960+288+480)=2(1728)=3456cm^2

tsa of suitcase = area of cloth

3456cm^2=l*48cm

l=72cm

so, cloth needed to cover 100 suitcases is 72*100=7200cm