Ripsnorting riddles from Down Under
UPDATE: Read the solutions here.
Parabola, a wonderful Australian maths magazine for secondary school pupils, celebrates its 60th birthday this month. Today’s puzzles are taken from a recently published compilation of its best problems.
More Stories
Microsoft unveils chip it says could bring quantum computing within years
Ex-US security officials urge funding for science research to keep up with China
Virologist Wendy Barclay: ‘Wild avian viruses are mixing up their genetics all the time. It’s like viral sex on steroids’