1.
What will be the mean of the largest and the smallest 3 digit numbers formed by 0, 2 & 4?
Correct Answer:
4
Description:
|
2.
What is the average of the first hundred positive integers?
Correct Answer:
1
Description:
|
3.
The mean of all consecutive odd natural numbers up to 100 is :
Correct Answer:
3
Description:
|
4.
The mean of seven consecutive numbers is 20. Which of these numbers is the largest?
Correct Answer:
2
Description:
|
5.
The average of eleven numbers is 63. If the average of first six numbers is 60, and the average of last six numbers is 65, then what number will be placed at sixth position?
Correct Answer:
1
Description:
|
6.
The mean height of thirty boys out of a class of fifty students is 160 cm. If the average height of the remaining boys is 165 cm, find the average height (in cm) of the whole class?
Correct Answer:
2
Description:
|
7.
The average of nine observations is 16. One more observation is added and the new average becomes 17. Find the tenth observation.
Correct Answer:
3
Description:
|
8.
4 boys and 3 girls spent Rs 120 on average, out of which, average spending by each boy was Rs 150. Find the average amount spent by each girl.
Correct Answer:
2
Description:
|
9.
The average daily income of X, Y & Z is Rs 450/-. If the average daily income of X & Y is Rs 400/-, and average daily income of Y & Z is Rs 430/-, what is the daily income earned by Y?
Correct Answer:
3
Description:
|
10.
The average of ten numbers is 30. After examining carefully, it is observed that the numbers 15 and 23 have wrongly been taken as 51 and 32 respectively. Find the average after making due corrections.
Correct Answer:
1
Description:
|