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MATH / A suitcase lock has 4 dials with the digits 0,1,2,...,9 on each. How many different settings are possible if all four digits have to be different?

Problem

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problem

A suitcase lock has 4 dials with the digits 0,1,2,...,90, 1, 2,..., 9 on each. How many different settings are possible if all four digits have to be different?
Plain-text mathematical notation (without MathML)
A suitcase lock has 4 dials with the digits 0,1,2,...,9 on each. How many different settings are possible if all four digits have to be different?
Original LaTeX notation
A suitcase lock has 4 dials with the digits $0, 1, 2,..., 9$ on each. How many different settings are possible if all four digits have to be different?

level

Level 4

type

Prealgebra

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Source and history

task_id
2005b890-be77-55c8-861c-5c7b9a1bb900
task_key
prealgebra--test--2005b890-be77-55c8-861c-5c7b9a1bb900
task_revision_id
1
config / split
prealgebra / test

Official source

initial import