Cleave Books Answers to Quick Puzzles 4
1. | 2 + 2 = 2 x 2 |
2. | Three. One of each. |
3. | 81 square metres. |
4. | 73 cm or 0.73 metres. 13 (the other factor) would be ridiculous |
5. | Half a square metre. |
6. | 49 |
7. | 9814072356 It contains all 10 digits, once and once only. |
8. | 92p a yard (by 0.6p) |
9. | £45 |
10. | 52.45 square cm. |
11. | Each point would be the vertex of regular tetrahedron. |
12. | 20 cm. |
13. | 4.00 cm (to 3 sig. figs) |
14. | The sum of the even numbers (by 50). |
15. | 9 zeros. |
16. | 7.5 km. |
17. | 24 km. |
18. | 5 (5 + 5 + 5 + 5) = 100 |
19. | Arranged alphabetically by their spelling. eight, five, four, nine . . . . two, zero. |
20. | 18 |
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