There are 30 boys and 20 girls in Supriya's class. find the ratio of number of boys to number of girls in Supriya's class.

There are 30 boys and 20 girls in Supriay's class. Let's find the ratio of number of boys to number of girls in Supriya's class.

The ratio of boys and girls in Suchitra's class is 4 : 3 . If the total number of students in class is 63, find the number of boys and girls in the class. After a few days 3 more girls joined the class. Calculate the present ratio of boys and girls in Suchitra's class.

Three boys and two girls stand in a queue. The probability, that the number of boys ahead of every girls is at least one more then the number of girls ahead of her, is-

There are 25 boy students and 20 girls students in a school. The average of marks in math of 25 boy students is 52 and the average of marks in math of 20 girl-students is 48. Find the average of marks obtained by the students of the school as a whole.

4 boys and 2 girls occupy seats in a row at random. Then the probability that the two girls occupy seats side by side is

In Noorjahan's class 30% of the students are girls. There are 60 students in the class. Let's calculate to find the number of boys in Noorjahan's class.

Today 10 of us have come to park to play. If the ratio of number of girls and boys is 2 : 3 in our group, how many girls and boys have come to play.

10 boys and 6 girls are arranged in a row, the number of arrangement is which no two girls are together is-

Proportion of girls in a class of 100 students is

The average marks of boys in a class is 52 and that of girls is 42. The average marks of boys and girls combined is 50. The percentage of boys in the class is (1) 40 (2) 20 (3) 80 (4) 60