## More Questions on This Topic :

Question 1.  in a village the average age of n people is 42 years. but after the verification it was found that the age of a person had been considered 20 years less than the actual age, so the new average, after
1.    21
2.    20
3.    22
4.    None of these
Explanation :

Question 2.  in a village the average age of n people is 42 years. but after the verification it was found that the age of a person had been considered 20 years less than the actual age, so the new average, after
1.    21
2.    20
3.    22
4.    None of these
Explanation :

Question 3.  a motorist travels to a place 150 km away at an average speed of 50 km/hr and returns at 30 km/hr. his average speed for the whole journey in km/hr is :
1.    35
2.    36
3.    37.5
4.    38.2
Explanation :

Question 4.  the average of the two-digit numbers, which remain the same when the dibits inter-change their positions, is :
1.    53
2.    54
3.    55
4.    56
Explanation :

Question 5.  a motorist travels to a place 150 km away at an average speed of 50 km/hr and returns at 30 km/hr. his average speed for the whole journey in km/hr is :
1.    35
2.    36
3.    37.5
4.    38.2