Study guides › Level 6 · Master

Two rows woven together

Level 6 · for questions like “2, 10, 4, 9, 6, 8, ?”

💡 The idea

Some number rows are really two rows taking turns: one in the 1st, 3rd, 5th… places, the other in the 2nd, 4th, 6th… places.

🪜 The steps

1. Cover every other number with your finger and read what’s left.
2. Find the step in each row.
3. Count places to see which row the next number belongs to.

⚠️ Watch out

• When a row looks random, try reading every other number before anything else.
• The two rows can go in different directions: one up, one down.

🎯 Try these

1. 1, 20, 3, 18, 5, 16, ?
2. 10, 2, 20, 4, 30, 6, ?

Answers: 1) 7 2) 40

This guide is also in the 10LogicQ app: tap “📖 Study guide” after a puzzle.