Question

a carpet costs 172.85 per square meter how much i will pay if i buy 7.5 square meter?

Answer 1

for 1 sq. m it is 172.85
for 7.5 sq. m it is 172.85 * 7.5 = 1296.375

Answer 2

1 square meter cost = 172.85
then,
7.5 square meter cost = 172.85 * 7.5
                                 =  1296.375
therefor the cost of 7.5 square meter =1296.375