In an examination hall 144 people were present. of these 1/2 were boys and of them 4/9 were girls. The rest were teachers. How many students were there in the hall? About the author Emery

Step-by-step explanation: Given:– In an examination hall 144 people were present. of these 1/2 were boys and of them 4/9 were girls. The rest were teachers. To find:– How many students were there in the hall? Solution:– Given that Total number of people were present in the examination hall = 144 Number of boys = 1/2 of the total people => (1/2)×144 => 144/2 => 72 Total number of boys = 72 Total number of girls = 4/9 of the total people => (4/9)×144 => (4×144)/9 => 4×16 => 64 Number of girls = 64 Total number of boys and girls = 72+64 = 136 Total number of teachers => 144-136 =>8 Number of teachers = 8 (or) Total people present in the examination hall => boys+girls+teachers => (144/2)+(4×144/9)+ Teachers = 144 => Teachers = 144 – (144/2)-(4×144/9) => Teachers = 144 -72-64 => Teachers = 144 – 136 Number of teachers = 8 Answer:– Total number of students were present in the examination hall = 136 Reply

Step-by-step explanation:Given:–In an examination hall 144 people were present. of these 1/2 were boys and of them 4/9 were girls. The rest were teachers.

Tofind:–How many students were there in the hall?

Solution:–Given that

Total number of people were present in the examination hall = 144

Number of boys = 1/2 of the total people

=> (1/2)×144

=> 144/2

=> 72

Total number of boys = 72

Total number of girls = 4/9 of the total people

=> (4/9)×144

=> (4×144)/9

=> 4×16

=> 64

Number of girls = 64

Total number of boys and girls = 72+64 = 136Total number of teachers

=> 144-136

=>8

Number of teachers = 8

(or)

Total people present in the examination hall

=> boys+girls+teachers

=> (144/2)+(4×144/9)+ Teachers = 144

=> Teachers = 144 – (144/2)-(4×144/9)

=> Teachers = 144 -72-64

=> Teachers = 144 – 136

Number of teachers = 8

Answer:–Total number of students were present in the examination hall =

136