# How many bicycle license tags can you make with four numeral spaces? Use 10 digits and no blank spaces.

QUESTION POSTED AT 02/06/2020 - 01:32 AM

QUESTION POSTED AT 02/06/2020 - 01:32 AM

In this case since repetition is allowed as well as starting with zero, the number of 4 digits chosen among the 10 (from 0 to 9):

the 1st digit can be selected in 10 ways

the 2ndt digit can be selected in 10 ways

the 3rd digit can be selected in 10 ways

the 4th digit can be selected in 10 ways

Or 10 x 10 10 x10 = 10⁴ = 10,000 Arrangements

the 1st digit can be selected in 10 ways

the 2ndt digit can be selected in 10 ways

the 3rd digit can be selected in 10 ways

the 4th digit can be selected in 10 ways

Or 10 x 10 10 x10 = 10⁴ = 10,000 Arrangements

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