🛠️ JEE➗ Maths

Let \(S=\{1,2,3,4,5,6,7,8,9\}\). Let \(x\) be the number of 9 -digit numbers formed using the digits of the set \(S\) su…

Q1

Let \(S=\{1,2,3,4,5,6,7,8,9\}\). Let \(x\) 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 \(y\) 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,

[JEE Main 2026, 28 Jan (Shift 1)]

a

\(56x = 9y\)

b

\(29x = 5y\)

c

\(45x = 7y\)

d

\(21x = 4y\)

🔒
Answer & explanation — PYQ Pass

Options are free to see. Unlock the correct answer and full explanation with Pass.

Unlock · ₹149

Practice more JEE Maths PYQs

See every question on Permutations and Combinations, or browse the full JEE question bank.

See all questions on Permutations and Combinations →