If 3 $ 4 = 37 and 4 $ 5 = 61, what is 5 $ 6?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 91.
3 $ 4 ⇒ 32 + 42 + (3 × 4) = 9 + 16 + 12 = 37
4 $ 5 ⇒ 42 + 52 + (4 × 5) = 16 + 25 + 20 = 61
5 $ 6 ⇒ 52 + 62 + (5 × 6) = 25 + 36 + 30 = 91