Question

The average age of the seven apprentice magicians is 143 years. The average age of the seven apprentice magicians and the head wizard is 150 years. How old is the head wizard in years? Please need answer ASAP!!!!!!!!

Answer 1

it would be 200 points. Lets assume that all of the apprentice magicians are 143 years old. If so, then 143 x 7 = 1001. 1001 + 200 = 1201. 1021 ÷ 8 (the number of magicians) the answer is 150. so the age of head wizard is actually 200 years.

Answer 2

assume each of the original three magicians is 143 years old
143 x 3 = 429
150 x 4 = 600
this means that the ages of the original three (429) plus the age of the head magician is 600
600 - 429 = 171