Problema Solution
a shopkeeper buys 72 articles for 82.80 dollars. how much he will have to pay if he buys 150 such articles
Answer provided by our tutors
Let 'x' represent the cost of 150 articles.
Assuming that each article costs the same we can write:
150 : x = 72 : 82.80
........
click here to see the equation solved for x
........
x = $172.50
150 articles cost $172.50.