Trucks needed to carry 72 tons

32 tons of goods can be transported at one time with 4 trucks of equal capacity. At this rate, how many trucks are needed to carry 72 tons in one trip?

Step-by-step

1. 32 ÷ 4 = 8
   Find how many tons one truck can carry
2. 72 ÷ 8 = 9
   Divide the total weight by one truck's load to get the number of trucks

Why it works

One truck carries 32 ÷ 4 = 8 tons, so 72 tons needs 72 ÷ 8 = 9 trucks.

Common mistakes

• Dividing 72 by 4 instead of by the capacity of one truck.
• Answering 8 trucks (the capacity) instead of the number of trucks.
• Multiplying 32 by 4 and then comparing with 72.