The line chart given below shows the number of male teacher and female teachers in 5 schools.
J1 = Total number of male and female teachers in school P.
J2 = The difference between the total number of male and the total number of female teachers in all the 5 schools.
What is the value of (J1 : J2) ?
Answer & explanation
Correct answer: option 4
J1 = Total number of male and female teachers in school P.
Total number of male and female teachers in P 80 + 60 = 140
J2 = The difference between the total number of male and the total number of female teachers in all the 5 schools.
Total number of males = 60 + 80 + 70 + 50 + 30 = 290
Total number of females = 80 + 70 + 20 + 10 + 30 = 210
J2 = 290 - 210 = 80
Now , J1 : J2 = 140 : 80
7 : 4