[JEE Main 2002] the number of four digit odd numbers formed using 0 1 2 3 5
The number of four-digit odd numbers formed using $0,1,2,3,5,7$ (repetition allowed) is
(a) $216$
(b) $375$
(c) $400$
(d) $720$
1 Answer
VAVidaara Admin
✓ Vidaara Team
✓ Accepted
· 2d ago
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Correct answer: (d) $720$
Last digit odd ($1,3,5,7$): $4$; first digit non-zero: $5$; middle two: $6$ each. $5\cdot6\cdot6\cdot4=720$.
JEE Main 2002 · Permutations and Combinations — verified solution by the Vidaara Team.
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