Two baskets of fruit with the same weight, the first basket sells 31 kg, the second basket sells 19 kg, and the second basket is 4 times the weight of the first basket, then how much is the original fruit in each basket?
两筐同样重的水果，第一筐卖出31千克，第二筐卖出19千克后，第二筐是第一筐的4倍，则每筐原有水果多少千克．
<gadget id="calculator">4 * 31</gadget>
<output>124</output>

<gadget id="calculator">124 - 19</gadget>
<output>105</output>

<gadget id="calculator">4 - 1</gadget>
<output>3</output>

<gadget id="calculator">105 / 3</gadget>
<output>35</output>

<result>35</result>