Three years ago the average age of a family of seven members was 22 years. A boy have been born, the average age of the family is the same today. What is the age of the boy?
Choose the most appropriate option
A) A)1 B) B)2 C) C)3 D) D)4 E) E)5
7 * 25= 
<gadget id="calculator">7 * 25</gadget>
<output>175</output>
175   8 * 22= 
<gadget id="calculator">8 * 22</gadget>
<output>176</output>
176   --------------   1   1nswer: 1
<result>A</result>
Three years ago the average age of a family of seven members was 22 years. A boy have been born, the average age of the family is the same today. What is the age of the boy?