m=5, n is 2 times of m, p is 1.2 times of n. Find the value of 3m+5n+10p.
m=5，n是m的2倍，p是n的1.2倍．求3m+5n+10p的值．
<gadget id="calculator">3 * 5</gadget>
<output>15</output>

<gadget id="calculator">5 * 5 * 2</gadget>
<output>50</output>

<gadget id="calculator">5 * 2 * 5 * 2 * 1.2</gadget>
<output>120</output>

<gadget id="calculator">15 + 50 + 120</gadget>
<output>185</output>

<result>185</result>