Amar obtained 410 marks out of 500 in an examination while his friend Rajiv gets 536 marks out of 600. Find whose performance is better.

Ram scored 553 marks out of 700 and Gita scored 486 marks out of 600 in science. Whose performance is better?

Rahim obtained 60 marks out of 75 in Mathematics. Find the percentage of marks obtained by Rahim in Mathematics.

Rohit obtained 45 marks out of 80. What per cent marks did he get?

The marks obtained (out of 100) by 400 students in an examination are given below: Using a graph paper, draw an ogive for the above distribution. Use ogive to estimate the following: estimate the number of students who obtained more than 80% marks in the examination.

The marks obtained (out of 100) by 400 students in an examination are given below: Using a graph paper, draw an ogive for the above distribution. Use ogive to estimate the following: estimate the median.

The marks obtained (out of 100) by 400 students in an examination are given below: Using a graph paper, draw an ogive for the above distribution. Use ogive to estimate: the number of students who did not pass if the pass percentage was 35.

A student obtained 60, 62, 64 and 66 marks in 4 subjects in an examination. Find the minimum marks he should get in 5th subject to have an average of at least 65 marks.

The mean marks (out of 100) of boys and girls in an examination are 70 and 73 respectively. If the mean marks of all the students in that examination is 71, find the ratio of the number of boys the number of girls.

To receive Grade ‘A’ in a course, one must obtain an average of 90 marks or more in five examinations (each of 100 marks). If Sunita's marks in first four examinations are 87, 92, 94 and 95, find minimum marks that Sunita must obtain m fifth examination to get grade ‘A’ in the course.

The marks obtained (out of 100) by 12 students in an examination are 74, 96, 87, 65, 99, 82, 76, 92, 66, 75, 85, 90 Find the median marks.