How many 3-digit numbers can be formed b

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Home Questions R42Q6TEZPE

Target Exam

CUET

Subject

General Test

Chapter

Quantitative Reasoning

Topic

Permutation

Question:

How many 3-digit numbers can be formed by using the digits 1 to 9, if no digit is repeated?

Options:

224

288

504

Correct Answer:

224

Explanation:

Given 3 digit numbers that can be formed using the digits from 1 to 9.

Required number of 3-digit numbers= arranging 3 digits with the total number of 9 digits.

= ₉P³ = (9×8×7) = 504.

Hence, the required number of numbers = 504.