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Question 1
Of the 5 numbers whose average is 76, the first is 3/7 times the sum of other 4. The first number is
Question 2
The average marks obtained by 30 students of a class is 61. If the 5 highest marks are removed, then the average reduces by one marks. The average marks of top 5 students is.
Question 3
The average of 10 numbers is calculated as 15. It is discovered later on that while calculating the average one number namely 36 was wrongly read as 26. The correct average is.
Question 4
The average age of 30 students of a class is 14 years 4 months. After admission of 5 new students in the class, the average becomes 13 years 9 months. The youngest one of the five new students is 9 years 11 months old. The average age of the remaining 4 new students is how much?
Question 5
A man spends ₹ 1800 monthly on an average for the first four months and ₹ 2000 monthly for the next eight months and saves ₹5600 a year. His average monthly income is
Question 6
The average of marks obtained by 120 candidates in a certain examination is 35. If the average marks obtained by passed candidates are 39 and those of the failed candidates are 15, what is the number of candidates who passed the examination?
Question 7
a, b, c, d, e, f, g are consecutive even numbers and j, k, l, m, n are consecutive odd numbers. The average of all the numbers is
Question 8
The average weight of the 8 oarsmen in boat is increased by 
kg when one of the crew who weighs 60kg is replaced by a new man. The weight of the new man in kg is
kg when one of the crew who weighs 60kg is replaced by a new man. The weight of the new man in kg isQuestion 9
Two years ago the average age of a family of 8 members was 18 years. After the addition of a baby, the average age of the family remains the same today. What is the age of the baby?
Question 10
After replacing an old member by a new member, it was found that the average age of five members of a club is the same as it was 3 years ago. The difference between the ages of the replaced and the new member is
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Aug 25SSC & Railway
