Find the missing number: 5, 10, 15, __, 25, 30

Answer as guest — Start Free Practice Test to earn Practice PointsHow to earn pointsAsk a question+3Answer a question+1Someone answers yours+1Your Q gets upvoted+1Pioneer bonus (first 5)+51 point = ₹1 discount on purchases, ask questions & climb the leaderboard!

• A 20
• B 16

Submit Answer

Show answer and explanation

Answer: A. 20

The numbers go up by 5 each time: 5, 10, 15, then 15 + 5 = 20, then 25 and 30. So the missing number is 20.

Answering after opening this box earns no Practice Points.