Question

How many bags of cement will you buy for a path 15 m long and 2 m wide if a bag of cement can cover 8 sq. Meters?

Answer 1

I will purchase totally 19 bags to cover 15 meters

Answer 2

$here \: total \: area \: = l \times b \\ = 15 \times 2 = 30 \: sq. meter \\ here \: now \: 1 \: bag \: of \: cement \: cover \: 8 \: sq.meter \\ so \: 8m {}^{2} = 1bag \\ so30m { }^{2} = 30 \times 1 \div 8$