Discover the answers to your questions at Westonci.ca, where experts share their knowledge and insights with you. Join our platform to connect with experts ready to provide accurate answers to your questions in various fields. Experience the ease of finding precise answers to your questions from a knowledgeable community of experts.

The average IQ of 4 people is 110. If three of these people each have an IQ of 105, what is the IQ of the fourth person ?

Sagot :

(105+105+105+x)/4=110
multiply both sides by 4
105+105+105+x=440
315+x=440
x=125