The average of the marks of 12 students in a class is 36. If the marks of each student are doubled, find the new average?
Options:
A) 72	B) 82	C) 97	D) 268	E) 27
Sum of the marks for the 12 students = 12 * 36= 
<gadget id="calculator">12 * 36</gadget>
<output>432</output>
432. The marks of each student are doubled, the sum also will be doubled.   The new sum= 432 * 2= 
<gadget id="calculator">432 * 2</gadget>
<output>864</output>
864. So, the new average= 864/12= 
<gadget id="calculator">864/12</gadget>
<output>72</output>
72.   72nswer:72
<result>A</result>
The average of the marks of 12 students in a class is 36. If the marks of each student are doubled, find the new average?