The sum of the three numbers A, B, and C is 190. The number of A is 5 times that of B, and the number of B is 3 times that of C. What is the number of A?
甲乙丙三个数之和是190，甲数是乙数的5倍，乙数是丙数的3倍，甲数是多少．
<gadget id="calculator">1 + 3 + 15</gadget>
<output>19</output>

<gadget id="calculator">190 / 19</gadget>
<output>10</output>

<gadget id="calculator">15 * 10</gadget>
<output>150</output>

<result>150</result>