Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
6. 21 minutes: the secret is to make sure that the fastest<br />
people do the most crossings and the slowest people the<br />
fewest. As the two slowest people are Colonel Hopalong-<br />
Slowly and Henrietta, these two should cross together. By<br />
adopting this strategy the total crossing can be achieved in<br />
21 minutes as follows:<br />
First: James and Jane cross 3 minutes<br />
then: James returns 2 minutes<br />
then: Henrietta and Colonel 10 minutes<br />
Hopalong-Slowly cross<br />
then: Jane returns 3 minutes<br />
finally James and Jane cross 3 minutes<br />
7. A: only when the same coloured dot appears in the same<br />
position twice in the first three circles is it transferred to<br />
the final circle<br />
8. 29: there are two interwoven sequences; the first<br />
progresses +7 and the other progresses +3<br />
9. cohere<br />
10. scamper: it is a run, whereas the others are walks<br />
11. bow/bough<br />
Test Four: Answers<br />
12. 16: the total of the three numbers is 17 × 3 = 51. The total<br />
of two numbers is 17.5 × 2 = 35. The third number must<br />
therefore be 51 – 35 = 16.<br />
73
Change language