Question

Three friends decided to exercise together four times a week to lose fat and increase muscle mass. While all three were healthier after six weeks, one had lost 5 pounds, another had gained 3 pounds, and one had lost 4 pounds. What was the total number of pounds gained or lost by the three friends?

Answer 1

Answer:

Lost 6 pounds

Step-by-step explanation:

While all three were healthier after six weeks,

• the first friend had lost 5 pounds (this means $-5$),
• the second friend had gained 3 pounds (this means $+3$),
• the third friend had lost 4 pounds (this means $-4$).

In total, they lost 6 pounds because

$-5+3-4=-2-4=-6$