The average age of 20 students of a class is 20 years. Out of these, the average age of 5 students is 14 years and that of the other 9 students is 16 years, The age of the 20th student is
Choose the correct choice
A) 186 B) 120 C) 152 D) 220 E) 220
Explanation:   Age of the 20th student = [20 * 20 - (14 * 5 + 16 * 9)] = (400-214)= 
<gadget id="calculator">(400-214)</gadget>
<output>186</output>
186 years.   186nswer: 186
<result>A</result>
The average age of 20 students of a class is 20 years. Out of these, the average age of 5 students is 14 years and that of the other 9 students is 16 years, The age of the 20th student is