The number A is 25, the number B is 9 times the number A, and the number C is 4 times the number B, what is the number C?
甲数是25，乙数是甲数的9倍，丙数是乙数的4倍，丙数是多少．
<gadget id="calculator">25 * 9 * 4</gadget>
<output>900</output>

<result>900</result>