Team P scored -40, 10, 0 and Team Q scored 10, 0, -40 in three successive rounds. Which team scored more ?

10,5,0….are in A.P then d=

In a quiz positive marks were given for correct answers and negative marks for incorrect answers.If Guru's scores in five successive rounds were 35,-10,-15,-20 and 5,what is his total score at the end ?

If (-2,-1), (1,0) and (4,3) are three successive vertices of a parallelogram, find the fourth vertex.

In an ungrouped data there are 10 scores. After arranging them which term is the median ?

For a group of 100 students, the mean bar(x)_(1) and the standard deviation sigma_(1) of their marks were found to be 40 and 15 respectively. Later it was observed that the scores 40 and 50 were misread as 30 and 60 respectively. If the mean and the standard deviation with the corrected observations of the scores, are bar(x)_(2) and sigma_(2) respectively , then

In a class test containing 10 questions, ‘3’ marks are awarded for every correct answer and (–1) mark is for every incorrect answer and ‘0’ for questions not attempted. Rashmi gets 3 correct and 4 incorrect answers out of seven questions she attempts. What is her score?

For an ungrouped data of 10 scores Arithmetic mean is 12. If one more score is joined to the previous scores the mean increases by 0.5 with this information. Ravi : Ravi says that the new score will be 0.5 more than 12. Harsha : Harsha says that the new score will be 5.5 more than 12. Ritu : Ritu says that sum of 11 scores is 17.5 greater than sum of 10 scores. Now, which of these is correct?

If 10 out of 30 students scored below 75% marks in a test. Find the ratio of student scored below 75% marks to the student scored 75% and above marks.