A student was asked to find the arithmetic mean of the numbers 3,11,7,9,15,13,8,19,17,21,14 and x. He found the mean to be 12. What should be the remainder in the place of x? Choose the correct choice from the following answers:
A) 5	B) 6	C) 7	D) 8	E) 9
We have (3+11+7+9+15+13+8+19+17+21+14+x) / 12 = 12   137+x = 144   x = 7   Answer is 7
<result>C</result>
A student was asked to find the arithmetic mean of the numbers 3,11,7,9,15,13,8,19,17,21,14 and x. He found the mean to be 12. What should be the remainder in the place of x?