Question

If 27 * 4 = 77 and 31 * 9 = 239, then 21 * 6 = ?

• A. 94
• B. 107
• C. 99
• D. 105

Answer 1

Answer:

C. 99

(27 × 4) – (27 + 4) = 77; (31 × 9) – (31 + 9) = 239; Similarly, (21 × 6) – (21 + 6) = 99