Missing Number Explanation

The given sequence is: 4, 7, 12, 15, 20, ?

Pattern Identification 🔍

Let's analyze the differences between consecutive numbers:

• 7 - 4 = 3
• 12 - 7 = 5
• 15 - 12 = 3
• 20 - 15 = 5

The pattern appears to be alternating additions of 3 and 5.

Extrapolation 📈

Following the pattern, the next difference should be 3.

Calculation ➕

Therefore, the missing number is 20 + 3 = 23

Summary Table 📊

Conclusion 🎉

The missing number is 23. The sequence follows an alternating addition pattern of 3 and 5. 🥳

Pattern observed: 3️⃣ - 5️⃣ - 3️⃣ - 5️⃣ - 3️⃣

Therefore: 20 + 3 = 23 ➕