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A box contains tiles, numbered 1, 2, 3,..., 49, 50. Only tiles which are marked with a number congruent to $2 \pmod{5}$ are blue. One tile is chosen randomly from the box. What is the probability that the tile is blue? ASAP

 Sep 29, 2020
 #1
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boi u from aops?

 Sep 29, 2020
 #2
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Listfor(n, 1, 50, n % 5 == 2)

2  7  12  17  22  27  32  37  42  47 >>Total = 10 Blue Tiles.

Therefore, probability is: 10 / 50 = 1 / 5

 Sep 29, 2020

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