Copyright © University of Cambridge. All rights reserved.

'Highs and Lows' printed from

Show menu

I have a max/min thermometer in my greenhouse. It records both the highest and the lowest temperatures reached from the time I reset it. I reset it on Sunday when the temperature was $4^\circ \text{C}$. Overnight the temperature fell $5^\circ$. Then during Monday it rose by $6^\circ$ before falling $10^\circ$ during the night. On Tuesday it rose by $4^\circ$ and fell by $2^\circ$ overnight. On Wednesday morning, what were the maximum and minimum temperatures recorded?


If you liked this problem, here is an NRICH task which challenges you to use similar mathematical ideas.

This problem is taken from the UKMT Mathematical Challenges.
View the archive of all weekly problems grouped by curriculum topic

View the previous week's solution
View the current weekly problem