On a certain day 25% of total students of a school were absent – the ratio of the number of boys to the number of girls

On a certain day 25% of total students of a school were absent – the ratio of the number of boys to the number of girls who were present is 11 : 19. The total number of girls enrolled in the school is 3850. The number of boys who were absent is 700 more than that of girls. Find the total number of students in the school.

a) 5000

b) 9000

c) 7000

d) 4000

Sol:

Total strength = 40x

Present = 30x

Absent= 10x