Three years ago the average age of a class of six members was 22 years. A boy have been added, the average age of the class is the same today. What is the age of the boy?	Choose the correct choice from the following answers: A) A)1 B) B)2 C) C)3 D) D)4 E) E)5
6 * 25= 
<gadget id="calculator">6 * 25</gadget>
<output>150</output>
150   7 * 22= 
<gadget id="calculator">7 * 22</gadget>
<output>154</output>
154   `4   4
<result>D</result>
Three years ago the average age of a class of six members was 22 years. A boy have been added, the average age of the class is the same today. What is the age of the boy?