all question are from past years...
duration: max 15 mins
topic average:
1) 3 year ago , the average age 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...
2) 10 years ago, the average age of a family of 4 members was 24 years. two children having been born (with age difference of 2 years), the present average age of the family is the same. the present age of the youngest child is:
3) the average salary of all the workers in a workshop is Rs. 8000. The average salary of 7 technicians is Rs. 12000 and the avg salary of the rest is Rs. 6000. the total numbers of worker in the workshop is:
4) A avg weight of 3 emn A B and C is 84 kg. Another man D joins the group and the avg now becomes 80 kg,. If another man E, whosee weight is 3 kg more than that of D, replaces A, then the avg weight of B C D and E becomes 79kg. the weight of A is
5)the avg age of 8 men is increaser by 2 years when two of them whose age are 21 years and 23 years are replaced by two new men.the avg age of the two new men is
6)the avg salary of 20 employees in an oraganisation is Rs 1500. If the manger salary is added , then aveg salary increses by Rs. 100. what is the manager's salary?
7) the avg weight of 3 boys A B C is 163/3 kg, while the avg weight of 3 boys B D E is kg. what is the avg weight of A B C D and E
8) the avg age of 15 students of a class is 15 years. out of these, the avg age of 5 students is 14 years and that of the other 9 student is 16 years.the age of the 15th students is
9) the mean of 50 observation was 36. it was found later that an observation 48 was wrongly taken as 23. the corrected new mean is?
10)the avg of non zero number and its square is 5 times the number. the number is ?
11) the avg of 5 consecutive odd no is 61. what is the difference between the highest and lowest numbers?
12) the avg of first five multiples of 3 is
13) the avg of 20 numbers is zero. of them at the most, how many may be greater than zero..?
14) find the all the numbers between 6 and 34 which are divisible by 5
15)a students was asked to find the arithmetic mean of the numbers 3, 11 ,7, 9, 15, 13, 8, 19, 17, 21, 14 and x. he found the mean to be 12. what should be the number in place of x?
Give your ans in comment box,
duration: max 15 mins
topic average:
1) 3 year ago , the average age 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...
2) 10 years ago, the average age of a family of 4 members was 24 years. two children having been born (with age difference of 2 years), the present average age of the family is the same. the present age of the youngest child is:
3) the average salary of all the workers in a workshop is Rs. 8000. The average salary of 7 technicians is Rs. 12000 and the avg salary of the rest is Rs. 6000. the total numbers of worker in the workshop is:
4) A avg weight of 3 emn A B and C is 84 kg. Another man D joins the group and the avg now becomes 80 kg,. If another man E, whosee weight is 3 kg more than that of D, replaces A, then the avg weight of B C D and E becomes 79kg. the weight of A is
5)the avg age of 8 men is increaser by 2 years when two of them whose age are 21 years and 23 years are replaced by two new men.the avg age of the two new men is
6)the avg salary of 20 employees in an oraganisation is Rs 1500. If the manger salary is added , then aveg salary increses by Rs. 100. what is the manager's salary?
7) the avg weight of 3 boys A B C is 163/3 kg, while the avg weight of 3 boys B D E is kg. what is the avg weight of A B C D and E
8) the avg age of 15 students of a class is 15 years. out of these, the avg age of 5 students is 14 years and that of the other 9 student is 16 years.the age of the 15th students is
9) the mean of 50 observation was 36. it was found later that an observation 48 was wrongly taken as 23. the corrected new mean is?
10)the avg of non zero number and its square is 5 times the number. the number is ?
11) the avg of 5 consecutive odd no is 61. what is the difference between the highest and lowest numbers?
12) the avg of first five multiples of 3 is
13) the avg of 20 numbers is zero. of them at the most, how many may be greater than zero..?
14) find the all the numbers between 6 and 34 which are divisible by 5
15)a students was asked to find the arithmetic mean of the numbers 3, 11 ,7, 9, 15, 13, 8, 19, 17, 21, 14 and x. he found the mean to be 12. what should be the number in place of x?
Give your ans in comment box,
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