Question: if it takes 42 minutes to load 3 1/2 trucks, how many minutes will it take to load 6 1/2 trucks?
Solutions:
Given that 42 minutes are required to load 3 1/2 trucks.
Let ‘x minutes’ be the time to load 6 1/2 trucks.
3 ½ trucks → 42 minutes
6 ½ trucks → x
By cross multiplication
3 ½ × x = 6 ½ × 42
x = (6 ½ × 42)/ 3 ½
= (13/2× 42)/ 7/2
x = 78
Thus x = 78 minutes
Summary:
If it takes 42 minutes to load 3 ½ trucks it takes 78 minutes to load 6 ½ trucks.
