There are 2759 students in a school and the ratio of boys to girls in the school is 40 : 49, then find the number of boys in school.

Correct option is B

Given:

Total number of students = 2759

Ratio of boys to girls = 40 : 49

Solution:

The total ratio parts = 40 (boys) + 49 (girls) = 89 parts.

Number of boys = $$\frac{40}{89} \times 2759 = 1240\, \text{boys}$$