Dear CCI members plz help me to solve these problems from Central Tendency, I got these questions from Masterminds book
1. The Average age of 15 students is 15 years. out of these the average age of 5 students is 14 years and that of other 9 students is 6 years, then the age of 15th student is ....
a) 11 years b) 14 years c) 15 years d) None
2. The Average of a group of 10 students is 20 years, if average age is increased by 2 years when two new students are joined then the average age of two new students is ....
a) 84 b) 64 c) 32 d) 42
3. The average of 5 quantities is 6 and in which the average of 3 is 8. what is the average of the remaining two?
a) 4 b) 5 c) 3 d) 305
CAclubindia
