To determine the number of deer in a forest, a forest ranger tags 280 and releases them back into the forest. Later, 405 deer are caught, out of which 45 of them are tagged. About how many deer are in the forest?

Respuesta :

Answer:

640

Step-by-step explanation:

405-45= 360

360+280=640

Answer:

  • 2520 deer

Step-by-step explanation:

Given

  • Tagged deer = 280
  • Caught deer = 405
  • Tagged among caught = 45

The ratio of the tagged deer vs total

  • 45 ⇔ 405
  • 280 ⇔ x

Solving by cross-multiplication

  • 45x = 405*280
  • x = 405*280/45
  • x = 2520

So there are about 2520 deer in the forest