Last week, the members of a weight loss support group collectively weighed 2,380 pounds. They just weighed in again and are now 5% lighter. What is the group's current weight?

Their current weight = 2261 punds

Step-by-step explanation:

The weight measured last week = 2,380 pounds

Their current weight got 5% lighter, meaning they lost 5% weight in the current week.

Their lost weight = 5% × 2,380

                                   = 5/100 × 2,380

                                   = 119 pounds

Thus, their current week can be calculated by subtracting 199 pounds from the total weight they previously had:

2380 - 119 = 2261 punds

Thus, their current weight = 2261 punds