In the first three quarters of 2006, the total revenue of my country's telecom operators China Mobile, China Telecom and China Netcom reached 405 billion yuan. Among them, China Telecom's revenue is twice that of China Netcom, and China Mobile's revenue is 15 billion yuan more than three times that of China Netcom. How much is China Mobile's revenue?
2006年前三季度，我国在电信运营商中国移动、中国电信、中国网通总收入高达4050亿元．其中，中国电信的收入是中国网通收入的2倍，中国移动比中国网通收入的3倍还多150亿元，中国移动的收入是多少亿元？
<gadget id="calculator">4_050 - 150</gadget>
<output>3_900</output>

<gadget id="calculator">1 + 2 + 3</gadget>
<output>6</output>

<gadget id="calculator">3_900 / 6</gadget>
<output>650</output>

<gadget id="calculator">3 * 650</gadget>
<output>1_950</output>

<gadget id="calculator">1_950 + 150</gadget>
<output>2_100</output>

<result>2_100</result>