The average age of 36 students in a group is 14 years. When teacher’s age is included to it, the average increases by one. What is the teacher’s age in years

1.  31

2.  36

3.  51

4.  Cannot be determined

5.  None of these

View Answer  
5
Correct Answer :

51


Explanation :
No Explanation available for this question

The average monthly salary of 20 employees in an organization is Rs. 1500. If the manager’s salary is added, then the average salary increases by Rs. 100. What is the manager’s monthly salary

1.  Rs. 2000

2.  Rs. 2400

3.  Rs. 3600

4.  Rs. 4800

View Answer  
4
Correct Answer :

Rs. 3600


Explanation :
No Explanation available for this question

The average weight of a class of 24 students is 35 kg. If the weight of the teacher be included, the average rises by 400 g. The weight of the teacher is:

1.  45 kg

2.  50 kg

3.  53 kg

4.  55 kg

View Answer  
4
Correct Answer :

45 kg


Explanation :
No Explanation available for this question

The average age of the mother and her six children is 12 years which is reduced by 5 years if the age of the mother is excluded. How old is the mother

1.  40 years

2.  42 years

3.  48 years

4.  50 years

View Answer  
4
Correct Answer :

42 years


Explanation :
No Explanation available for this question

The captain of a cricket team of 1 members is 26 years old and the wicket keeper is 3 years older. If the ages of these two are excluded, the average age of the remaining players is one year less than the average age of the whole team. What is the average age of the team

1.  23 years

2.  24 years

3.  25 years

4.  None of these

View Answer  
4
Correct Answer :

None of these


Explanation :
No Explanation available for this question

The average height of 25 boys is 1.4 m. When 5 boys leave the group, then the average height increase by 0.15 m. What is the average height of the 5 boys who leave

1.  0.8 m

2.  0.9 m

3.  0.95 m

4.  1.05 m

View Answer  
4
Correct Answer :

0.8 m


Explanation :
No Explanation available for this question

The average weight of 8 persons increases by 2.5 kg when a new person comes in place of one of them weighing 65 kg. What might be the weight of the new person

1.  76 kg

2.  76.5 kg

3.  85 kg

4.  Data inadequate

5.  None of these

View Answer  
5
Correct Answer :

85 kg


Explanation :
No Explanation available for this question

The average weight of 45 students in a class is 52 kg. Five of them whose average weight is 48 kg leave the class and other 5 students whose average weight is 54 kg join the class. What is the new average weight (in kg) of the class

1.  

2.  

3.  

4.  None of these

View Answer  
4
Correct Answer :


Explanation :
No Explanation available for this question

The average age of 8 men increased by 2 years when two of them whose ages are 21 years and 23 years are replaced by two new men. The average age of the two new men is:

1.  22 years

2.  24 years

3.  28 years

4.  30 years

View Answer  
4
Correct Answer :

30 years


Explanation :
No Explanation available for this question

The average of five consecutive numbers is n. If the next two numbers are also included, the average will :

1.  Remain the same

2.  Increase by 1

3.  Increase by 14

4.  Increase by 2

View Answer  
4
Correct Answer :

Increase by 1


Explanation :
No Explanation available for this question
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