There are 50 students in a class of which 40 are boys and the rest are girls. The ratio of the number of boys and number of girls is
(a) 2 : 3
(b) 1 : 5
(c) 4:1
(d) 2:5.​

There are 30 boys and 20 girls in a class. The ratio of the number of girls to the number of boys is

The average age of students of a class is 15.8 years. The average age of boys in the class is 16.4 years and that of the girls is 15.4 years. The ratio of the number of boys to the number of girls in the class is (a) 1 : 2 (b) 2 : 3 (c) 3 : 4 (d) 3 : 5

There are 25 boys and 25 girls in a class. The ratio of the number of boys to the total number of students is

In a class, if 60% of the students are boys and the number of girls is 36, then the number of boys is:

In a class of 60 students, the number of girls is one third the number of boys. Find the number of girls and boys in the class.

There are ‘b’ boys and ‘g’ girls in a class. The ratio of the number of boys to the total number of students in the class is:

There are 'b' boys and 'g' girls in a class. The ratio of the number of boys to the total number of students in the class is: