Level 3
Min and Tina had an equal number of candies. After Min bought another 20 candies and Tina bought another 6 candies, Min had thrice as many candies as Tina. Find the number of candies each of them had at first.
Level 3
A bus had some passengers at the beginning. After 10 passengers alighted from the bus and another 46 passengers boarded the bus, there were two times as many passengers as before. How many passengers were there on the bus at first?
