JEE Main Mathematics question

MathematicsPermutations and CombinationsJEE Main

Let are four numbers. How many numbers can be made using all four numbers?

Answer: (D)

Solution

Reading the question as numbers formed from some or all of the digits without repetition: one-digit , two-digit . Three-digit and four-digit

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-020508