If, 5 + 7 = 47, 3 + 8 = 35, 9 + 2 = 29 then, 7 + 4 = ?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 39.
The logic used here is:
5 + 7 = 47
(5 + 7) + (5 × 7) = 12 + 35 = 47
3 + 8 = 35
(3 + 8) + (3 × 8) = 11 + 24 = 35
9 + 2 = 29
(9 + 2) + (9 × 2) = 11 + 18 = 29
Similarly;
7 + 4 = ?
(7 + 4) + (7 × 4) = 11 + 28 = 39
Hence, option 4 is the correct answer.