Answers to Puzzle Trio 25
|73.||A Red triangle is the last one in the set.|
They are the 4 symbols used on English banknotes,
designed to help people with poor sight.
|74.||34 years (= 30 + 4)|
|75.||(a) 75π/4 or 58.9 square metres |
(b) 781π/4 or 613.4 square metres.