#### Average Question & Answers

The average of any 5 consecutive odd natural numbers is k . If two more such numbers , just next to the previous 5 numbers are added , the new average becomes

A) 2(k+1) | B) 2k-3 |

C) 2k+1 | D) k+2 |

Explanation:

The 5 consecutive odd numbers whose average is k are (k-4), (k-2), k, (k+2), (k+4)

Again the average of (k-4), (k-2), k, (k+2), (k+4), (k+6), (k+8) is (k+2)

Subject: Average - Quantitative Aptitude - Arithmetic Ability

- Related Questions

The average monthly salary of the employees of a firm is Rs.60 out of the employees 12 officers get an average of Rs.400 per month and the rest an average of Rs. 56 per month , Find the number of emp

Actual average salary of 12 officers = 400

Total salary of 12 officers = 400 x 12 = 4800

Average of these 12 officers as a whole =60

Total salary of 12 officers as a whole = 60 x 12 = 720

The total salary of rest = 4800 - 720 = 4080

Difference in average of the rest of officers = 60 - 56 = 4

Rest of the officers =

Total number of employees = 1020 + 12 = 1032

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Subject: Average - Quantitative Aptitude - Arithmetic AbilityThe mean temperature of Monday to Wednesday was 37C and of Tuesday to Thursday was 34C . If the temperature on Thursday was (4/5) th that of Monday, the temperature on Thursday was?

-----------(1)

--------------(2)

(1) - (2) gives

th of temperature on Monday =

Temperature on Monday =

Temperature on Thursday =

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Subject: Average - Quantitative Aptitude - Arithmetic AbilityA batsman makes a score of 87 runs in the 17th inning and thus increases his average by 3. Find his average after 17th inning?

Let the average after 7th inning = x

Then average after 16th inning = x - 3

16(x-3)+87 = 17x

x = 87 - 48 = 39

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Subject: Average - Quantitative Aptitude - Arithmetic AbilityThe average of 9 results is 50. The average of first four results is 52 and average of last four results is 49 . what is the fifth result?

Total of results = 50 x 9 = 450

Total of first four results = 52 x 4 = 208

Total of Last four results = 49 x 4 = 196

Hence the fifth result = 450 - (208 + 196) = 46

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Subject: Average - Quantitative Aptitude - Arithmetic AbilityA man covers a journey from Meerut to Delhi by a car at an average speed of 40 km/hr. He returns back by scooter with an average speed 24 km/hr. Find his average speed during the whole journey?

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Subject: Average - Quantitative Aptitude - Arithmetic Ability