Average of 13 results is 65. If the average of first six results is 61 and average of last six results is 59 Then find the seventh result
Total of 13×65 = 845Total number of first six numbers = 61×6=366Total number of last six numbers= 59×6=354
366+354 = 720
845-720 = 125
Average of five consecutive even numbers is 35. Find the greatest number in these five numbers
The average of seven numbers is 18. The average of first three numbers is 14 and the average of last three numbers is 19. What is the middle number
The average age of a class of 32 students is 16 yrs. If the teacher's age is also included, the average increases by one year. Find the age of the teacher.
In a class, the average age of 30 boys is 13 years and the average of 20 girls is 12 years. What is the average age of the whole class
What is the average of first 21 multiples of 7