Question

What is the difference between the number of teachers from school B and the average number of girls from school A and B?

Q: Answer-What is the difference between the number of teachers from school B and the average number of girls...

Let the number of teachers in school A 5x Then the number of boys in school A 7x According to the question, 5x 7x 84 2 x 14 So, number of teachers in school A 5 14 70 Number of boys in school A 7 14 98 Number of girls in school B 84 97 108 Number of girls in school C 140 108 32 Number of boys in school C 98 2 100 Number of teachers in school B 168 1324 91 Number of boys in school B 168 91 77 Number of teachers in school C 91 11 102 Number of boys in school C 98 2 100 Number of teachers from school B 91 Average number of girls from school A and B 84 1082 96 Required difference 96 91 5

Read the data carefully and answer the following questions: The number of boys in school A is 40% more than the number of teachers in the same school. The number of girls in school A is 84 which is equal to the average of number of teachers and boys in the same school. Ratio of number of girls in school A and B is 7:9 respectively and the sum of number of girls in school B and C is 140. School C has two more boys than school A and 11 more teachers than school
B. Ratio of number of teachers and boys in school B is 13:11 respectively while sum of number of teachers and boys in school B is 168.

A 3

B 4

C 5

D 6

E None of these