Mathematics
The mean age of eight boys is 16 years. If two more boys, with ages 18 years and 14 years, join them, the resulting mean age is :
18 years
14 years
16 years
32 years
Related Questions
The mean of 5 variables is 20. If four of them are 15, 25, 10 and 12; the fifth variable is :
38
60
48
28
The mean height of 5 students is 140 cm. If height of one student is 156 cm, the mean height of remaining students is :
74 cm
136 cm
16 cm
80 cm
The mean value of 15 numbers is 20. If one of these numbers is wrongly taken as 45 instead of 15, the correct mean is :
30
15
20
18