Find the odd number: 324, 244, 136, 352.

A324 ✓ Correct

B244

C136

D352

Correct answer: (A) 324

Explanation

324 is the odd number.

For 244, 136 and 352 the digit sum is 10 (2+4+4, 1+3+6, 3+5+2).

Each of these three has digits adding to 10.

For 324, 3+2+4 = 9, not 10.

So the number with digit sum 9 stands apart.

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