- #1

tahmidbro

- 15

- 1

- Homework Statement:
- My answer does not match with the ones in book

- Relevant Equations:
- N/A

See the question : https://www.thestudentroom.co.uk/att...hmentid=978958

The mark scheme/answer : https://www.thestudentroom.co.uk/att...hmentid=978956

I have got the answer to the vertical height gained = 1.355 m. No problem.

But not the value of the percentage difference. Their value : 23%, my value =( (1.355-1.2 )/1.35) x 100% = 11.48%

Well, I suspect that they are multiplying %D by 2, but why?

The mark scheme/answer : https://www.thestudentroom.co.uk/att...hmentid=978956

I have got the answer to the vertical height gained = 1.355 m. No problem.

But not the value of the percentage difference. Their value : 23%, my value =( (1.355-1.2 )/1.35) x 100% = 11.48%

Well, I suspect that they are multiplying %D by 2, but why?