What will come at the place of question mark?
2, 6, 20, 70, ?, 924
Show answer & explanation
Correct answer: B
Explanation
2 = ²C₁
6 = ⁴C₂
20 = ⁶C₃
70 = ⁸C₄
? = ¹⁰C₅
924 = ¹²C₆
Now,
10C5 = (10 × 9 × 8 × 7 × 6) / (5 × 4 × 3 × 2 × 1)
= 252
So the correct answer is 252.