Four numbers, when arranged in ascending order, are w, x, y and z. The average of the smallest three numbers is 25.5 while the average of the largest th...
A set contains ten numbers. The average of the first six numbers is (x − 5), and the average of the last three numbers is (x + 1). The average of the...
- The average marks obtained by 20 students in a test is 74. It was later found that 78 was wrongly recorded as 87 and 69 was wrongly written as 63. What is ...
The average age of 21 children is 30 years. 4 new children, whose average age is 15 years, join them. Find the average age of the 25 children. Â
Average of 8 numbers is 70. If average of first four and last two numbers is 90 and 50, respectively then find the fifth number given that ratio of fift...
The average marks in geography exam of a class of 25 students are 64. If the marks of three students were misread as 44, 46 and 61 in lieu of the actual...
Of the four numbers, whose average is 75, the first is one-fourth of the sum of the last three. The first number is
The average weight of 6 people is 80 kg. When two new people with their weights in the ratio 2:3 joined the group, the average weight of all the people ...
If the average of 13 different numbers is 15, and if all the numbers are positive integers then what is the largest possible value of the average of the...
A batsman had an average of 39 runs in 35 innings. In his next 5 innings, he scored 100, 85, 90, 80, and 60. What is his updated average?
