Problem of the Week Feb 23 - 27, 2020

Feb 23, 2020 | Killarney

Solve the Problem of the Week for your grade level!

Get a Problem of the Week ballot and submit your entry before closing time on Thursday. All correct solutions will receive 5 extra punches on their Reward card at the start of their next session in the math learning centre.

Grades 3-4: It takes 5 batteries to power 1 flashlight. It takes 4 batteries to power 1 radio. Which of the following requires more batteries: 3 flashlights and 2 radios or 4 flashlights and 1 radio? 

Grades 5-6: Brandon finds 4 kilograms and 520 grams of wood for a campfire. Emma finds 5 kilograms and 410 grams. Luis finds 9 kilograms and 570 grams. How much campfire do they have in total?  

Grades 7-8An unroasted marshmallow has a volume 4.1π cubic centimetres. After Andrew roasts the marshmallow over a campfire, its volume is 150% its original volume. What is the post-roast volume of the marshmallow? 

Grades 9 and upA triangular prism-shaped tent has a rectangular base that is 18 decimetres wide and 24 decimetres long. The isosceles triangular sides have bases that are 18 decimetres wide and edges that are 15 decimetres in length. If all the walls of the tent are pulled perfectly flat, then what is the volume of the tent?