Question : The table given below shows the number of male teachers and female teachers in 5 schools.

Schools Male
Teacher
Female
Teacher
J 180 240
K 240 210
L 210 60
M 150 30
N 90 90

A1 = The average number of female teachers in all the 5 schools.
A2 = The average number of male teachers in all the 5 schools.
What is the value of (A+ A2)?

Option 1: 300

Option 2: 48

Option 3: 126

Option 4: 174


Team Careers360 4th Jan, 2024
Answer (1)
Team Careers360 8th Jan, 2024

Correct Answer: 300


Solution : A 1 = The average number of female teachers in all the 5 schools
= $\frac{(240 + 210 + 60 + 30 + 90)}{5}$
= $\frac{630}{5}$
= $126$
A 2 = The average number of male teachers in all the 5 schools
= $\frac{(180 + 240 + 210 + 150 + 90)}{5}$
= $\frac{870}{5}$
= $174$
$\therefore$ A 1 + A 2 = 126 + 174 = 300
Hence, the correct answer is 300.

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