A group of students takes a test and the average score is 72. One more student takes the test and receives a score of 88 increasing the average score of the group to 76. How many students were in the initial group ?

There was a group of six students who took a test. Another student joined the group after taking the test later. With her marks included the average score of the group went up by 3. This student has got ............ marks more than the average marks without her being included.

Calculate the mean of the scores of 20 students in a mathematics test

Calculate the mean of the scores of 20 students in a mathematics test

In a class, there are 54 students. 33(1)/(3)% of the number of students are boys and rest are girls. The average score in mathematics of boys is 50% more than that of the girls. If the average score of all the students is 70, then what is the average score of the boys?

The average of the test scores of a group of x students is 76 and the average of the test scores of a group of y students is 90. When the scores of the two groups of students are combined, the average test score is 85. What is the value of of (x)/(y) ?

In a class of 10 boys and 15 girls, the average score on a biology test is 90. If the average score for the girls is x, what is the average score for the boys in terms of x ?

The mean score of three students in a test out of 45 is 38. Two new students take the test. What is the lowest mark that can be obtained by the newcomer who scores less than the other new student for the overall average of the five students to rise to 40 ?