Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Engineering
  • I have a doubt, kindly clarify. A biologist studied the population of rats in a barn.He found that the average natality was 250, averagemortality 240, immigration 20 and emigration 30.The net increase in population is:

A biologist studied the population of rats in a barn. He found that the average natality was 250, average mortality 240, immigration 20 and emigration 30. The net increase in population is:

  • Option 1)

    zero

  • Option 2)

    10

  • Option 3)

    15

  • Option 4)

    05

 

Answers (2)

best_answer

As we learnt in concept

B = 250                                               \therefore Net Increase

I = 20                                                   = 250+20 - (240+30) = 0

D = 240

E = 30


Option 1)

zero

This option is correct.

Option 2)

10

This option is incorrect.

Option 3)

15

This option is incorrect.

Option 4)

05

This option is incorrect.

Posted by

Aadil

View full answer

1

Posted by

vandana

View full answer

Similar Questions

Latest Question