Question
Solution
ATQ,
Find the sum of the first and last numbers if the average of seven continuous numbers is 90.
The average weight of a class of 25 student is 60 KG. If X is student joined the class, than the average weight of whole class increases by (2X – 7)...
The number of students in class 'A' is 140, and the ratio of girls to boys is 9:5. If the average number of boys in classes A and B is 160, and the aver...
At an event, the average number of men and women attending is 700. 65% of the men and 35% of the women are adults. If the total number of children at th...
The average salary of department A with n employees is ₹40,000, and that of department B with (n+15) employees is ₹50,000. If the combined average ...
P, Q, R, S and T are five persons. The weight of P, Q and R is 80%, 102% and 84% respectively of the average weight of all five. The ratio of weight of ...
The average of 24 numbers is 48. If 5 is added to each number, then the new average will be:
The average age of P, Q, and R is 22 years. Two years ago, the sum of the ages of P and Q was 5 years less than the age of R. Find the present age of R.
A student has two types of markers: Marker A priced at $3 each and Marker B priced at $5 each. If the student purchases a total of 12 markers, with an a...
Average run scored by a batsman in first ‘x’ matches is 50. In next 16 matches he scored runs with an average of 70 so that his overall average incr...