The average weight of a group of five persons, A, B, C, D, and E is 67 kg. If another person K joins the group then the average weight of the group is d...
- The first six days of a week had an average rainfall of 90 cm, while the last six days recorded an average of 98 cm. If the weekly average rainfall was 95 ...
A batsman averages 28.4 runs in 15 innings. In the next three innings, he scores 45, 89 and 52. Find his new batting average.
The average age of 32 children and their teacher's age are 28 years. If the teacher's age is excluded, the average reduces by 1. What is the teacher's age?
Average of four numbers is 24. Sum of smallest and largest number is 53. If difference between other two numbers is 1, then find the square of second sm...
The average age of 22 children and their teacher's age are 20 years. If the teacher's age is excluded, the average reduces by 1. What is the teacher's age?
The average of a set of 's' numbers is 20. If 80 is added to the set, then the average of the set becomes 20.5. Find the value of '4 X (s - 12)'.
- The average age of (x + 4) students of a class is 18 years. If the 54 years old class teacher is also included then average age of the class gets increased...
Average of three consecutive numbers is 91. Find the sum of smallest and largest number.
In a Math exam, the average score of 50 students is 68. The ratio of boys to girls in the class is 3:2. If the average score of the boys is 70, what is ...
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