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A class of 40 set out to determine the population of lizards in a bound field measuring 200 metres by 100 metres using the capture-recapture method.

In their first outing, the students captured a total of 360 lizards all of which were marked with indelible ink and then released back into the field.

After a one week interval the students went back into the field and caught a total of 250 lizards out of which 150 bore the indelible ink mark.

The population density of the lizards in the field is?

A.

0.003 per m2

B.

0.03 per m2

C.

3 per m2

D.

4 per m2

E.

6 per m2

Correct answer is B

No explanation has been provided for this answer.