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3 years ago

14

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 3

773 are all peachy, but the numbers 32152, 786, 340, and 3999 are not peachy.
How many positive 2-digit numbers are peachy?

1 answer:

Kobotan [32]3 years ago

7 0

Answer:

18

Step-by-step explanation:

33-1

3r-9

r3-8

r means random digit

9+8+1=19

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