Three of the following four numbers are alike in a certain way and one is different. Choose the number that does not belong to the group.
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → 835
Add the digits of each number.
Option (1) 773 — \( 7 + 7 + 3 = 17 \)
Option (2) 683 — \( 6 + 8 + 3 = 17 \)
Option (3) 835 — \( 8 + 3 + 5 = 16 \)
Option (4) 755 — \( 7 + 5 + 5 = 17 \)
The digits of 773, 683 and 755 add up to 17; the digits of 835 add up to 16, so 835 is the odd one out.