Josh is going to choose a two digit number. What is the probability that the sum of the digits will be nine?

Question

Mathematics

Immanuel Franco

11 July, 14:42

Josh is going to choose a two digit number. What is the probability that the sum of the digits will be nine?

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Answers (2)

Know the Answer?

Carlo Ali · Answer 1

4/45

Step-by-step explanation:

First find all the pairs that make 9 that are two digit:

1+8

2+7

3+6

4+5

5+4

3+6

2+7

1+8

That's 8 pairs, and as there are 90 two digit numbers, 8/90 is the answer. but if you want to simplify, the answer is 4/45

Admiral · Answer 2

The answer is 4/45 I believe so