The total number of students in class A and B is 72. The number of students in A is 40 more than that in B. The average marks of students in B are 50% m...
The average cost price of articles 'P' and 'Q' together is Rs. 280, where the cost price of article 'Q' is Rs. 40 more than that ...
The average of 9 numbers is 100. The average of the first 4 numbers is 65 and the average of the last 4 numbers is 40. What is the 5th number?
Rohit Sharma scores 93 runs in his 23rd inning, due to this his average increased by 3 runs. Find his current average?
The average mark obtained by Khushi in four papers was 51, and in the fifth paper, she obtained 56 marks. Find his new average in all five papers.
The average age of A and B is 15 years. If A is to be replaced by C, the average would be 14 years. The average age of C and A is 16 years. Find the age...
In an examination, the average marks obtained by the students is 75. After correcting the quantitative mistakes, the average of 100 students is reduced...
Mixture X comprises juice and water in a 5:4 ratio, and mixture Y consists of juice and water in a 7:9 ratio. When mixture X is combined with mixture Y,...
The average age of A, B & C is 48 years. Ratio of present ages of A to C is 3:5 and present age of B is 33.33% more than that of A. find the difference...
The average age of 18 children and their teacher's age are 15 years. If the teacher's age is excluded, the average reduces by 2. What is the teacher's age?
