Question
10 625 50 125 250 25
? What should come in the place of question mark (?) in the following number series?Solution
In an examination, the average marks obtained by the students is 85. After correcting the quantitative mistakes, the average of 100 students is reduced ...
The average marks of 'n' boys is (n + 6) and that of 30 girls is (2n - 10). If the average marks of all students together is 52, find the number of boys.
Average weight of 5 students in a class increases by 4 kg when weight of teacher is also included. If sum of average weight of 5 students and weight of ...
The average score obtained by 22 students in a class test is 68 marks. The top place was shared by 3 people who got the same score. If the lowest score ...
In a gathering of 30 guests, the average age of each guest in the class is 21 years. Later, 4 more guests join the party, causing the average age of the...
The average salary of all males and females in an office is Rs.16000 and the total number of females in the office is 16. If the average salaries of mal...
Three natural numbers are given. If sum of average of any two numbers and the remaining third number is 56, 46 and 50 respectively, then find the sum o...
The average age of A and B is 16 years. If A is to be replaced by C, the average would be 15 years. The average age of C and A is 17 years. Find the age...
The average age of three children is 21 years. If their ages are in the ratio 3:5:6. Find the age of the youngest child.
The batting average of 40 innings of a cricket player is 50 runs. His highest score exceeds his lowest by 172 runs. If the two are excluded, the average...
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