In Uncle Zhang’s salary bag, there are three kinds of Renminbi: Wu Jiao, Yi Yuan and Wu Yuan, a total of 100 pieces, with a total value of 130 Yuan; the total of Wu Jiao and Wu Yuan is 105 Yuan. How many coins are there?
张叔叔的工资袋中有伍角、壹元和伍元的人民币三种，共计100张，总值人民币130元；伍角和伍元币合计105元．伍角币有多少张．
<gadget id="calculator">130 - 105</gadget>
<output>25</output>

<gadget id="calculator">100 - 25</gadget>
<output>75</output>

<gadget id="calculator">5 * 75</gadget>
<output>375</output>

<gadget id="calculator">375 - 105</gadget>
<output>270</output>

<gadget id="calculator">5 - 0.5</gadget>
<output>4.5</output>

<gadget id="calculator">270 / 4.5</gadget>
<output>60</output>

<result>60</result>