The average age of 35 students in a class is 16 years. The average age of 21 students is 14. What is the average age of remaining 38 students?  Choose the correct choice from the following:  A) 14 years  B) 7 years  C) 19 years  D) 21 years  E) None
Solution   Sum of the ages of 14 students	= (16 x 35) - (14 x 21)   = 560 - 294.= 
<gadget id="calculator">560 - 294.</gadget>
<output>266</output>
266.   ∴ Required average= 266 / 38= 
<gadget id="calculator">266 / 38</gadget>
<output>7</output>
7 years.   Answer 7 years
<result>B</result>
The average age of 35 students in a class is 16 years. The average age of 21 students is 14. What is the average age of remaining 38 students?