Averages · Question 6 · Medium
The average of 11 results is 50. The average of the first six is 49 and that of the last six is 52. What is the sixth result?
- 54
- 58
- 56
- 60
Answer and explanation
Answer: C. 56
Explanation: The sixth result is counted in both groups: 6 × 49 + 6 × 52 − 11 × 50 = 294 + 312 − 550 = 56.
Previous: The average weight of 8 students is 50 kg. When the teacher's weight is… · Next: A section of 30 students has an average score of 60 and another section of 20…
Practise averages
Try a fresh set of averages questions with an explanation after every answer, free and without signing up: Averages practice. Or sit a full placement mock test.
More averages questions
- The average of 5 numbers is 40. When one number is removed, the average of the…
- Rohit scored 45, 60, 72 and 38 runs in four innings. How many runs must he…
- The average weight of 8 students is 50 kg. When the teacher's weight is…
- A section of 30 students has an average score of 60 and another section of 20…
- The average of 7 consecutive odd numbers is 33. What is the largest of them?
- A cricketer has an average of 32 runs in 10 innings. How many runs must he…
- Three years ago, the average age of a husband, his wife and their child was 27…
- Pooja drives from Pune to Nashik at 40 km/h and returns along the same route…
- The average of 25 numbers was found to be 36. Later it was discovered that the…
- The average weight of 10 people increases by 1.5 kg when one of them, weighing…
More quantitative aptitude practice
Problems on Ages · Mixtures & Alligation · Time & Work · Pipes & Cisterns · Time, Speed & Distance · Problems on Trains · Boats & Streams · Permutation & Combination
LogicWiz Exams home · All practice topics · Placement mock tests · Daily 10 challenge