The bar graph given below shows the number of male teacher and female teachers in 5 schools.

K1 = The total number of male teachers in all the 5 schools.
K2 = The total number of female teachers in all the 5 schools.
What is the value of (K1 - K2) ?
Answer & explanation
Correct answer: option 1
K1 = The total number of male teachers in all the 5 schools
= 120 + 160 + 140 + 100 + 60
= 580
& K2 = The total number of female teachers in all the 5 schools
= 160 + 140 + 40 + 20 + 60
= 420
Now , ( K1 - K2 ) = 580 - 420 = 160