How to score 80+ in mathematics

Savio scores x marks in Mathematics, y marks in Physics, and z marks in Chemistry. Calculate his total score in all three subjects.

In Figure, the pie-chart shows the marks obtained by a student in various subjects. If the student scored 135 marks in mathematics, find the total marks in all the subject. Also, find his score in individual subjects.

The line of regression marks in economics (X) for marks in mathematics (Y) for a class of 50 students is 3y - 5x+180 = 0. Average score in mathematics is 44 and variance of marks in economics is 9/16th , of variance of marks in mathematics. Find the average score in economics and also the coefficient of correlation between marks in economics and mathematics.

Six papers are set in examination, two of them in mathematics: in how many different orders can the papers be given, provided only that the two mathematical papers are not successive?

The score of Ishita in Mathematics is 25 more than the two third of her score in Science. If she scored x marks in Science, determine her score in Mathematics.

Anjali scores 100 marks in Mathematics and x marks in Science. what is her total score in Science and Mathematics?

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

The marks obtained by 10 candidates in English and Mathematics are given below: Estimate the probable score for Mathematics if the marks obtained in English are 24.

72% of 25 students are good in mathematics. How many are not good in mathematics?

The scores in mathematics test (out of 25) of 15 students are as follows: Find the mode and median of this data. Are they same?