Level 3 There are 634 passengers in Train A. There are twice as many passengers in Train B as in Train A. There are half as many passengers in Train C as in Train A.
How many passengers are there in Train B?
How many passengers are there in the 3 trains altogether?
Level 2
Abigail has twice the number of hair clips as Betty. Clare has thrice the number of hair clips as Abigail. If Clare has 504 hair clips, how many hair clips do the three girls have altogether?