Zhang and Wang each have a deposit in the bank. Lao Zhang has a deposit of 800 yuan. If Lao Zhang withdraws 1/5 of the deposit and Lao Wang withdraws 75% of the deposit, then Lao Zhang's balance is twice that of Lao Wang. It's 120 yuan more. How much did Zhang and Wang have in total?
张、王二人在银行各有一笔存款，老张存款800元，如果老张从存款中取出1/5，老王从存款中取出75%，那么老张的余款比老王的2倍还多120元．张、王二人原来共有存款多少元？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">800 * (4/5)</gadget>
<output>640</output>

<gadget id="calculator">640 - 120</gadget>
<output>520</output>

<gadget id="calculator">520 / 2</gadget>
<output>260</output>

<gadget id="calculator">75 / 100</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">1 - (3/4)</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">260 / (1/4)</gadget>
<output>1_040</output>

<gadget id="calculator">1_040 + 800</gadget>
<output>1_840</output>

<result>1_840</result>