Correct Answer: 240
Explanation:
As, 9 * 7 ⇒ (9 + 7) (9 - 7) = 16 x2 = 32 13 * 7 ⇒ (13 + 7) (13 - 7) = 20 x 6 = 120 17 * 9 ⇒ (17 + 9) (17 - 9) = 26 x 8 = 208 Similarly, 19 * 11 ⇒ (19 + 11) (19 - 11) = 30 x 8 = 240 ∴ ? = 240
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