The difference is 4 times of the subtrahend, and the difference between the difference and the subtrahend is 150. What is the minuend.
差是减数的4倍，差与减数的差是150．被减数是多少．
<gadget id="calculator">4 - 1</gadget>
<output>3</output>

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

<gadget id="calculator">50 * 4</gadget>
<output>200</output>

<gadget id="calculator">200 + 50</gadget>
<output>250</output>

<result>250</result>