A family consists of grandparents, parents and three grandchildren. The average age of the grandparents is 67 years, that of the parents is 35 years and that of the grandchildren is 6 years. What is the average age of the family

1.  

2.  

3.  

4.  None of these

View Answer  
4
Correct Answer :


Explanation :
No Explanation available for this question

A library has an average of 510 visitors on Sundays and 240 on other days. The average number of visitors per day in a month of 30 days beginning with a Sunday is:

1.  250

2.  276

3.  280

4.  285

View Answer  
4
Correct Answer :

285


Explanation :
No Explanation available for this question

If the average marks of three batches of 55, 60 and 45 students respectively is 50, 55 and 60, then the average marks of all the students is:

1.  53.33

2.  54.68

3.  55

4.  None of these

View Answer  
4
Correct Answer :

54.68


Explanation :
No Explanation available for this question

The average weight of 16 boys in a class is 50.25 kgs and that of the remaining 8 boys is 45.15 kgs. Find the average weight of all the boys in the class

1.  47.55 kgs

2.  48 kgs

3.  48.55 kgs

4.  49.25 kgs

View Answer  
4
Correct Answer :

48.55 kgs


Explanation :
No Explanation available for this question

A car owner buys petrol at Rs 7.50, Rs. 8 and Rs. 8.50 per litre for three successive years. What approximately is the average cost per litre of petrol if he spends Rs. 4000 each year

1.  Rs. 7.98

2.  Rs. 8

3.  Rs. 8.50

4.  Rs. 9

View Answer  
4
Correct Answer :

Rs. 7.98


Explanation :
No Explanation available for this question

The average of six numbers is x and the average of three of these is y. If the average of the remaining three is z, then :

1.  x = y + z

2.  2x = y + z

3.  x = 2y + 2z

4.  none of these

View Answer  
4
Correct Answer :

2x = y + z


Explanation :
No Explanation available for this question

Out of 9 persons, 8 persons spent Rs. 30 each for their meals. The ninth one spent Rs. 20 more than the average expenditure of all the nine. The total money spent by all of them was:

1.  Rs. 260

2.  Rs. 290

3.  Rs. 292.50

4.  Rs. 400.50

View Answer  
4
Correct Answer :

Rs. 292.50


Explanation :
No Explanation available for this question

The average of 50 numbers is 30. If two numbers, 35 and 40 are discarded, then the average of the remaining numbers is nearly:

1.  28.32

2.  28.78

3.  29.27

4.  29.68

View Answer  
4
Correct Answer :

29.68


Explanation :
No Explanation available for this question

The average of five numbers is 27. If one number is excluded, the average becomes 25. The excluded number is:

1.  25

2.  27

3.  30

4.  35

View Answer  
4
Correct Answer :

35


Explanation :
No Explanation available for this question

The average age of 35 students in a class is 16 years. The average age of 21 students is 14. What is the average age of remaining 14 students

1.  15 years

2.  17 years

3.  18 years

4.  19 years

View Answer  
4
Correct Answer :

19 years


Explanation :
No Explanation available for this question
Previous Next

Interview Questions

MongoDB
Java Script
Node JS
PHP
JQuery
Python