Choose the number which is different from the others.
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → 295
A number is divisible by 3 when the sum of its digits is divisible by 3.
Option (1) 295 — \(2+9+5=16\), not a multiple of 3, so 295 is not divisible by 3 and is the odd one out.
Option (2) 552 — \(5+5+2=12\), so \(552=3\times184\).
Option (3) 729 — \(7+2+9=18\), so \(729=3\times243\).
Option (4) 906 — \(9+0+6=15\), so \(906=3\times302\).