The average weight of 5 men is decreased by 3 kg when one of them weights 150 kg replaced by another person. This new person is again replaced by anther person whose weight is 30 kg lower than the person he replaced . What is the overall change in he average due to this dual change?
The average weight of 11 person among 12 person is 95kg . The weight of the 12 th person is 33 more that the average of all 12 , find the weight of the 12th person ?
The arithmetic means of score of a group of students in a test was 52 The brightest 20% secure 80 as mean and the dullest 25% secure mean of 31 . The mean score of remaining 55%?
The average weight of three men A,B and C is 84 Kg. Another man D joins the group and the average now becomes 80 kg. if another man E whose weight 3 kg more than D replaces A then the average of B C D and E become 79 kg . What is the weight of A ?
The average age of 5 boys is 16 yr, of which that 4 boys is 16 yr 3 months the age of the 5th boy is ?
The average of 9 nos is 50 . The average of first 5 no is 54 and that of the last 3 no is 52 then the sixth no is ?
Out of 7 numbers the average of first 4 is 4 and the last 4 is also 4 and the average of all 7 is 3 find the 4th number ?
There are 30 boys and 60 girls in a class . If the average age oF boys is 12 yrs and the average of girls are 10 find the average of the whole class ?
If the average of 35 numbers is 22, the average of the first 17 numbers is 19, and the average of the last 17 numbers is 20, then the 18 number is:
At present the average age of 20 students of class ten is 15.5 years. The present age of the class teacher is 47 years. What will be the average age of the students and the class teacher
The average weight of 13 students and their teacher is 24.5 kg. If the weight of the teacher is 31 kg, then what is the average weight of the 13 students?
A student was asked to find the arithmetic mean of the following 12 numbers : 3, 10, 8, 9, 13, 13, 10, 20, 16, 21, 14 and x He found the mean to be 12. The value of x will be
At present the average age of father and son is 25 years and after 7 years the son will be 17 years old what will be age of father after 10 years ?
Four years ago average age of A and B was 18 years now the average age of A,B and C are 24 yrs then after 8 yrs age of C will be ?
When 70 is replaced with another number in a group of 15 no's it is found that the average increased by 3 . Find the newly added number ?
Average weight of 10 students increased by 2 kg when a boy of 48 kg replaced by another boy. Find the weight of the new boy ?
Average mark of 8 students in the class is 91 when one more student is included the average decreased by 1 find the mark scored by the new student ?
Average weight of 11 object is 200kg . If the weight of the new object is also included the average increased by 3 then what is the weight of the new object ?
Average age of 29 students in a class is 14 when the age of the teacher is also included the average increased by 1 then what is the age of teacher ?
Average weight of 8 members of a group is 37. it is found that the weight of one person is wrongly marked as 63 instead of 31 find the original average of the group ?
Average weight of 10 students of a class is 40 if weight of one student marked as 80 instead of 60. Find the original average of students weight
The average of 13 result is 60. if the average of the first 7 result is 59 and that of the last 7 is 61, then what will be the 7th result?
The average mark of 10 students in the class is 30 and average mark scored by all other students in the class is 40 if the total number of students are 30. Find the average of the whole class ?
വിരമിച്ച 9 പേര് അടങ്ങുന്ന ഒരു ഗ്രൂപ്പിന്റെ ശരാശരി പ്രായം 64 ആണ്. ഒരു അംഗം ഗ്രൂപ്പ് വിടുമ്പോൾ , ശരാശരി പ്രായം 62 ആയി കുറയുന്നു. എങ്കിൽ പോയ വ്യക്തിയുടെ പ്രായം എത്രയാണ് ?
The average of the marks of 14 students in a class is 63. If the marks of each student is doubled, find the new average?
The sum of five numbers is 655. The average of the first two numbers is 78 and the third number is 129. Find the average of the remaining two numbers?
The average of the marks of 14 students in a class is 66. If the marks of each student are doubled, find the new average?
Kanchan bought 52 books for Rs 1130 from one shop and 47 books for Rs 905 from another. What is the average price (in Rs) he paid per book ?
The average weight of 7 persons increases by 3 kg when a new person comes in place of one of them weighing 56 kg. What might be the weight of the new person?
The sum of five numbers is 655. The average of the first two numbers is 77 and the third number is 134. Find the average of the remaining two numbers?
In a class the average marks obtained in a science test by a group of 12 students is 70, by another group of 15 students is 85 and
that by another group of 18 students is 90. Find the average marks of all the students.