The ratio of number A to number B is 9:8. If number B increases by 34, then the quotient of number A divided by number B is (7/10). What is number A?
甲数和乙数的比是9：8，如果乙数增加34，这时甲数除以乙数的商是(7/10)，甲数是多少．
<gadget id="calculator">7 / 10</gadget>
<output>7/10 = around 0.7</output>

<gadget id="calculator">(7/10) * 34</gadget>
<output>119/5 = around 23.8</output>

<gadget id="calculator">(7/10) * 8</gadget>
<output>28/5 = around 5.6</output>

<gadget id="calculator">9 - (28/5)</gadget>
<output>17/5 = around 3.4</output>

<gadget id="calculator">(119/5) / (17/5)</gadget>
<output>7</output>

<gadget id="calculator">9 * 7</gadget>
<output>63</output>

<result>63</result>