Multiple choice general knowledge math & puzzles

What is the next missing number 2,3,6,15,45, ___?

  1. 155.5

  2. 157.5

  3. 159.5

  4. 153.5

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The sequence uses multipliers that increase by 0.5 at each step: $2 \times 1.5 = 3$; $3 \times 2 = 6$; $6 \times 2.5 = 15$; $15 \times 3 = 45$. The next multiplier is 3.5. $45 \times 3.5 = 157.5$. Other options do not follow this arithmetic progression of multipliers.