Mean - Jamb Mathematics Past Questions and Answers

Question 46:

• JAMB 2016

Determine the mean score of the student that took the mathematics test?

A. 4.5
B. 4.3
C. 4.2
D. 4.6

Question 47:

• JAMB 2020

The goals scored by 40 football teams from three league divisions are recorded below

No of goals	0	1	2	3	4	5	6
Frequency	4	3	15	16	1	0	1

What is the total number of goals scored by all the teams?

A. 21
B. 40
C. 91
D. 96

Question 48:

• JAMB 2020

The mean age group of some students is 15years. When the age of a teacher, 45 years old, is added to the ages of the students, the mean of their ages become 18 years. Find the number of students in the group.

A. 7
B. 9
C. 15
D. 42

Question 49:

• JAMB 2021

The mean of ten positive numbers is 16. When another number is added, the mean becomes 18. Find the eleventh number

A. 3
B. 16
C. 38
D. 30