Let . Let be the number of... | JEE Main 2026 28 Jan Shift 1

JEE MAIN 2026

28-1-2026 S1

Question

Let . Let be the number of 9 -digit numbers formed using the digits of the set S such that only one digit is repeated and it is repeated exactly twice. Let be the number of 9-digit numbers formed using the digits of the set S such that only two digits are repeated and each of these is repeated exactly twice. Then,

Select the correct option:

$29 x=5 y$

$45 x=7 y$

$21 x=4 y$

$56 x=9 y$

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution