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 (A1 + A2)?
Option 1: 300
Option 2: 48
Option 3: 126
Option 4: 174
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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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