A and B have two deposits, and the amount of A's deposit is B's (1/4). When A withdraws the deposit of 75 yuan, the amount of A's deposit is (1/6) of the amount of B's deposit. How much is B's original deposit? (solution with equation)
甲、乙两人存款，甲存款数是乙的(1/4)，当甲取出75元存款后，甲存款数是乙存款数的(1/6)，乙原有存款多少元？(用方程解答)
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">(1/4) - (1/6)</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">75 / (1/12)</gadget>
<output>900</output>

<result>900</result>