Four numbers of A, B, C, and D, remove one number each time, and average the remaining three numbers, do this 4 times, and get 50, 38, 52, 46. Find the average of the four numbers.
甲、乙、丙、丁四数，每次去掉一数，将其余三数平均，这样算了4次，得到50，38，52，46．求四数的平均数．
<gadget id="calculator">50 * 3</gadget>
<output>150</output>

<gadget id="calculator">38 * 3</gadget>
<output>114</output>

<gadget id="calculator">52 * 3</gadget>
<output>156</output>

<gadget id="calculator">46 * 3</gadget>
<output>138</output>

<gadget id="calculator">150 + 114 + 156 + 138</gadget>
<output>558</output>

<gadget id="calculator">558 / 3 / 4</gadget>
<output>93/2 = around 46.5</output>

<result>93/2 = around 46.5</result>