SOLUTION TO LAST MONTH'S QUIZ
1. 80 ml.
2. 100 ml.
3. 120 ml.
Notes
We give in detail the solution to question 3 only. Questions 1 and 2 are solved in a similar manner.
Day 0: A, B and C set off, each carrying 12 days' supplies.
Day 3: C gives 3 day's supplies to each of A and B.
C turns around.
Day 6: B gives 3 days' supplies to A and turns around.
Day 12: A reaches greatest distance, and turns around.
B reaches base. Sets off again with 12 days' supplies.
Day 18: B meets A. B gives A 3 days' supplies. B turns around.
C sets off from base with 12 days' supplies.
Day 21: C meets A and B, and gives each 3 days' supplies.
C turns around.
Day 24: A, B and C all back at base.
