To explain - since Charlie always beat Darren and Darren had a second place, one race must have been Charlie first and Darren second. Brian therefore won the other race with Charlie second. Since only one runner finished in the same place in both races, this must have been Alan in third. QED.
If a hen and a half lay an egg and a half in a day and a half, how many eggs can a hen lay in three days?
Hint: Try doubling the number of hens first.
Answer: 2 eggs.
We are told that:
1.5 hens will lay 1.5 eggs in 1.5 days.
We can double the chickens (which doubles the eggs):
3 hens will lay 3 eggs in 1.5 days.
We can now double the days (which doubles the eggs):
3 hens will lay 6 eggs in 3 days.
We can now divide the number of hens by 3 (which also divides the numbers of eggs by 3).
Using the BrainTracker grid below, how many words can you find? Each word must contain the central P and no letter can be used twice. The letters do not have to be connected. Proper nouns are not allowed, however, plurals are. Can you find the nine letter word?