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