There are 6 cartons of eggs, each with an equal number of eggs. If 50 eggs are taken from each box, then the number of eggs remaining in the 6 boxes is exactly equal to the number of eggs in the original 4 boxes. How many eggs are there in each carton?
有6箱鸡蛋，每箱鸡蛋的个数相等．如果从每箱中拿出50个鸡蛋，那么6箱子剩下的鸡蛋个数正好和原来4箱鸡蛋个数相等．原来每箱鸡蛋有多少个？
<gadget id="calculator">6 - 4</gadget>
<output>2</output>

<gadget id="calculator">6 / 2</gadget>
<output>3</output>

<gadget id="calculator">50 * 3</gadget>
<output>150</output>

<result>150</result>