1 Crore+ students have signed up on EduRev. Have you? Download the App 
The average age of Husband and wife was 30yr, 4 yr ago. What will be their average age at present ?
The average weight of 20 students is 60kg.If the weight of the teacher is added, average is increased by 2kg.What was the teacher’s weight ?
The average mark in 2 subjects is 35 and in three other subject is 40.Then find the average mark in all the five matches ?
The average height of 15 students is calculated as 75. But later it was found that the height of 1 student wrongly entered as 35 instead of 38 and another as 46 instead of 63.The correct average is
Among the three number the first is thrice the third number and second number is half of the first number. If the average of the three number is 65.8 then find the third number
The average weight of 3 students P,Q and R is 84kg.Anothe students S joins the group and the average becomes 80kg. If another man T whose weight is 3kg more than that of S, replaces P, then the average weight of Q,R,S and T becomes 79 kg then the weight of P is
The average of 5 consecutive number is 58.Find the first number ?
The average weight of 8 staff is increased by 3kg when one of them whose weight is 50kg is replaced by a new staff. The weight of the new staff is
The average age of 15 army men is 60yrs.5 new army men of average age 30yrs join them. Find the new average age
The average ages of 4 member, each having the age difference of 2yrs is 54 yrs.What is the sum of the youngest and oldest family member ?
3 years ago, the average of a family of 5 members was 17 years. A baby having been born, the average age of the family is the same today. The present age of the baby is:
Of the four numbers, the first is twice the second, the second is onethird of the third and the third is 5 times the fourth. The average of the numbers is 24.75.The largest of these numbers is:
The average age of students of a class is 15.8 years. The average age of boys in the class is 16.4 years and that of the girls is 15.4 years. The ratio of the number of boys to the number of girls in the class is:
The average price of 10 books is Rs. 12 while the average price of 8 of these books is Rs. 11.75. Of the remaining two books, if the price of one book is 60% more than the price of the other, what is the price of each of these two books?
The average age of 30 boys of a class is equal to 14 years. When the age of the class teacher is included the average becomes 15 years. Find the age of the class teacher?
The Average of marks obtained by 120 candidates in a certain examination is 35. If the average marks of passed candidates is 39 and that of failed candidates is 15, what is the number of candidates who passed the examination?
The average of 11 results is 50. If the average of first 6 results is 49 and that of last 6is 52, find the sixth result?
The average age of a family of 6 members is 22 years. If the age of the youngest member be 7 years, then what was the average age of the family at the birth of the youngest member?
A batsman in his 17th innings makes a score of 85, and thereby increases his average by 3. What is his average after 17 innings?
There were 35 students in a hostel. If the number of students increase by 7, the expenses of the mess increase by Rs 42 per day while the average expenditure per head diminishes by Rs 1. Find the original expenditure of the mess?
56 videos104 docs95 tests

56 videos104 docs95 tests
