Mathematics · Oct / Nov 2022 · Paper 21 · Question 24
0580
As printed in the paper
The question as text
Violet and Wilfred recorded their times to run 200 m, correct to the nearest second. Violet took 36 seconds and Wilfred took 39 seconds. Work out the upper bound of the difference between their times. s [2]
Read automatically from the paper; the printed page above is exact.
Show the answer and mark scheme
4 nfww [2]
M1 for 39 + 0.5 or 36 – 0.5 or better seen 39 – 0.5 or 36 + 0.5
Make a free account to save your answers and see your weak topics and ask the AI why a wrong answer is wrong.