Curioustab

Home » Aptitude » Average

The average of 6 observation is 12. A new 7th observation is included and the new average is decrease by 1 , the seventh observation is?

1
3
5
6

Correct Answer: 5

Explanation:

Seventh observation = sum of 7 observations - sum of 6 observations = 7 x 11 – 6 x 12
= 5

← Previous Question Next Question→

More Questions from Average

Out of four number, the average of first three is 15 and that of the last three is 16, if the last number is 19, the first is?
The average temperature of the first three days is 27° C and that of the next three is 29° C . If the average of the whole week is 28.5° C, the temperature of the last day of the week is?
A ship sails out to a mark at the rate of 15 kmph. and sails back at the rate of 10 kmph. The average rate of sailing is?
The average consumption of petrol for a car for seven months is 110 litres and for next five months it is 86 litres. The average monthly consumption is?
A batsman has a certain average runs for 11 innings . In the 12th innings he made a score of 90 runs and thereby decrease his average by 5 . His average after 12th innings is?
The average age of A, B , C, D five years ago was 45 years . by including P, the present average age of all the five is 49 years . the present age of P is?
Out of three number, the first is twice the second and is half of the third. If the average of the three number is 56, the three number on order are?
The sum of seven numbers is 235. The average of the first three is 23 and that of the last three is 42. The fourth number is?
Find the average of the following set of scores 253, 124, 255, 534, 836, 375, 101, 443, 760
Find the average of the following set of scores. 124, 856, 331, 227, 963, 338, 259, and 662

Discussion & Comments

No comments yet. Be the first to comment!

Join Discussion