- A18
- B21
- C20
- D15
Step-by-Step Solution
The multiples are 6, 12, 18, 24, 30; their sum is 90, so the average is 90/5 = 18.
Answer: A) 18
Find the average of the first five positive multiples of 6.
Competition practiceAverages & Ages
Master this topic in 30 minutes a day.
Don't just memorise the answer — build a daily practice habit.
Practice 5 Similar Questions Free →All Averages & Ages practice questions
More Averages & Ages practice
The average weight of the 25 sacks in a godown was recorded as 46 kg. It was later found…Of the 50 candidates who wrote a departmental paper, 30 cleared it with an average score…What is the average of the first 15 odd numbers?The average monthly electricity use of the 8 flats in a wing is 240 units. One flat,…The average temperature of a hill town from Monday to Thursday was 21°C, and from…