In a study, a fish and game department worker catches, tags and frees 124 catfish in a lake. A few weeks later, he catches and frees 140 catfish. Thirty-five have tags. Estimate the number of catfish in the lake.

496 catfish

Step-by-step explanation:

Let the total number of catfish in the lake be x.

The ratio of tagged catfish to the total catfish population is 124:x.

Also, few weeks later, he catches and frees 140 catfish and 35 have tags. This will be expressed as:

35:140.

Combining and expressing both ratios as fractions together will be:

35/140 = 124/x

1/4 = 124/x

x = 124 × 4

x = 496

There are 496 catfish in the lake.

not enough information

step-by-step explanation:

we cannot know this, because the other students could have handed out 10 flyers, or they could have handed out 100. one way, the mean would go up, and another way, the mean would go down.