A three digit number with digits A, B, C in that order is divisible by 9. A is an odd digit and C is an even digit. B and C are non-zero. The number of such three digit numbers is?
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total is 20
(162,144,126,198,342,324,396,378,522,594,576,558,792,774,756,738,972,954,936,918)
CipherChan01:
Yes but how many such numbers are there?
20
How did you get that? Please explain.
edited answer already
Yes Thanks for the answer but how did you get those numbers? Did you use trial and error or some other method?
simple add digit of given number. then see that it is divisible by 9 or not
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