From our class seven, out of 150 students, 90 students and from 140 students of class six, 80 students participated in a sit-in-draw competition, express in ratio to find which of the two classes has greater participation.

From our class seven, out of 150 students, 90 students and from 140 students of class six, 80 students participated I a sit-n-draw competition. Let's express in ratio to find which of two has a greater participation.

30 students of my class were present. Total number of students in our class is 60. Let's find what percent of students have come to my class.

(ii) Today, 7 students of our class are absents. There are 35 students in our class. Let us find the percentage of students persent today in class.

Today is the Foundation day of our school. Each student of class five will be given pencil and eraser worth 5 rupees. Each student of class six will be given compass worth of 10 rupees. There are x students present in class five, but number of students present in class six is 8 less than the number present in class five. Calculate the amount of money spent for pencils and erasers and also the amount spent for compasses.

An educational trip to Gadiyara had been arranged by our school for collection environment related date. 32 studens of class six, 36 students of class seven and 28 students of class eight are going for the trip, few small school buses have been arranged so that each bus must accoumodate equal number of studentsfrom the three classes. Let us find ,total number of buses required and number of students each but will accomodate.

The donations given to an orphanage home by the students of different classes of a secondary school are given below. Find the mean, median and mode of the data.

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.

A class has n students we have to form a team of the students including at least two students and also excluding atleast two students the number of ways of forming the team is

Each x students of class V is given y books. But each x students of class VI is given (y+3) books. Again each (x+11) students of class VII is given (y+10) books. Calculate to find, how many books were given to the students of class V, VI and VII. Also find the total number of books given out in their classes.

The frequency distribution of the heights (in cm) of 100 students of class X in a school .Find the average height of the students .