+0  
 
0
139
1
avatar

So I need to know the answer to this question. 

A positive multiple of 45 less than 1000 is randomly selected. What is the probability that it is a two-digit integer? Express your answer as a common fraction.

If you explai how to solve this prolem it will help me a lot.

 Jun 30, 2019
 #1
avatar
0

Well, Look at this list:

 

45  90  135  180  225  270  315  360  405  450  495  540  585  630  675  720  765  810  855  900  945  990  Total No =  22.

As you can see, there are 22 numbers between 45 and 1000 that are multiples of 45. But, only 2 of them

have 2 digits, 45 itself and 90. So, the probability would be:

2 / 22 =1 / 11 That a randomly picked number will be a 2-digit number.

 Jun 30, 2019

32 Online Users

avatar
avatar
avatar