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19 February, 03:54

We call a number peachy if every digit in the number is either a 3 or next to a $3.$ For example, the numbers 333, 83, 303 and 3773 are all peachy, but the numbers 32152, 786, 340, and 3999 are not peachy.

How many positive 2-digit numbers are peachy?

+3
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  1. 19 February, 04:20
    0
    18

    Step-by-step explanation:

    33-1

    3r-9

    r3-8

    r means random digit

    9+8+1=19
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