biology calculation question

Thread starter 5 years ago
#1
can someone pls explain to me how this calculation question is done?

heres the markscheme

1. one correct calculation eg (1.5 ÷ 1.4) = { 1.07 / 1.1 } x bigger (1.5 ÷ 1.7) = { 0.88 / 0.9 } x bigger (1.8 ÷ 1.4) = { 1.29 / 1.3 } x bigger (1.8 ÷ 1.7) = { 1.06 / 1.1 } x bigger
2. between { 1.06 and 1.29 / 1.1 and 1.3 } x bigger ;
0
5 years ago
#2
The mark scheme is saying any of those calculations will do to get you the first mark.

You need to divide either of the numbers from the white rhino by either of the numbers from the black rhino.

As long as the answer you get fits the calculation you have performed you get the mark.

However to get the full 2 marks you need to state a range from the smallest number of times bigger to the largest.

You find this by dividing the smallest white rhino number by the smallest black rhino number for the lower end of the range, and then the largest white rhino number by the smallest black rhino number for the upper end of the range.
0
X

new posts
Back
to top
Latest
My Feed

Oops, nobody has postedin the last few hours.

Why not re-start the conversation?

see more

See more of what you like onThe Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

Poll

Join the discussion

Were exams easier or harder than you expected?

Easier (21)
27.63%
As I expected (23)
30.26%
Harder (28)
36.84%
Something else (tell us in the thread) (4)
5.26%