and B both go to the bank to save money. It is known that the amount of A's deposit is (2/5) of the total amount of deposits of the two. If B takes out 30 yuan and deposits it in A's account, then the amount of money deposited by the two people is equal. Find out how much money B actually deposited.
甲、乙二人同到银行储蓄，已知甲存款数是二人存款总钱数的(2/5)．如果乙取出30元存人甲的账号，那么这二人存款的钱数就相等，求乙实际存款是多少元．
<gadget id="calculator">30 + 30</gadget>
<output>60</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 - (2/5) - (2/5)</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">60 / (1/5)</gadget>
<output>300</output>

<gadget id="calculator">300 * (2/5)</gadget>
<output>120</output>

<gadget id="calculator">300 - 120</gadget>
<output>180</output>

<result>180</result>