# math

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A two-digit number is chosen at random.What is the probability that the chosen number is a multiple of 7 ?

• math -

14, 21, 28, 35, 42, 49, 56, 63, 70, 77, 84, 91 and 98 are two-digit numbers that are multiples of 7.

There are 89 two-digit numbers (10-99).

13/89 = ?

• math -

But the answer is

a. 1/10
b. 1/9
c. 11/90
d. 12/90
e. 13/90

• math -

I think is answer e

• math -

You are right. I forgot to include the 10 in the range.

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