There are two piles of stones, A and B. Pile A has 200 tons, and Pile B has 120 tons. Use a truck with a load of 5 tons to transport the stones from Pile A to Pile B. How many times will the two piles of stones be the same?
甲乙两堆石子，甲堆有200吨，乙堆有120吨，用一辆载重5吨的汽车把石子从甲堆运到乙堆，要运几次后两堆石子就一样多？
<result>5</result>