Question

12500 students appeared in an exam , 50% of the boys and 70% of the girls cleared in the examination if the total percent of students qualifying is 60% how many girls appeared in the exam​

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Answer:

We can solve this using Alligation:

Let 50% be X1 and 70% be X2 and 60% be X.

You can find the ratios of boys and girls by -

Girls                                                Boys

70%-60% i.e (X2-X )             60%-50% i.e  (X- X1)

Hence ratios obtained are :

1:1

Now number of girls appeared for exam = 1/2*12500= 6250.