Question

2, 3, 9, when used once, can be arranged to form _______ distinct 3-digit numbers.

• A. 3
• B. 6
• C. 4
• D. 5

Answer 1

The correct option is B 6

The given three digits can be arranged to form 6 distinct 3-digit numbers. They are $932,923,239,293,329,392$.

.i.e, Arrangement of 3 distinct digit in $3!=3\times 2\times 1=6$ ways.