Ask your own question, for FREE!
Mathematics 20 Online
OpenStudy (anonymous):

Please help, I'll give you a medal. How many 2-digit numbers can be formed by using only the digits, 2,3,5, and 6 if the digits are not be repeated within a number. A.11 B.12 C.10 D.2

OpenStudy (ajanijones):

Its C.

OpenStudy (ajanijones):

can I have medal

OpenStudy (anonymous):

It is 12, if you count manually, so I would go with B

OpenStudy (anonymous):

its b

OpenStudy (anonymous):

explaination: every digit out of the four given digits can be combined with three other digits to form a two digit number. So there are a total of 3 * 4 = 12 possible numbers

OpenStudy (anonymous):

you can also solve it by using the combinations formula..

OpenStudy (anonymous):

its B fo sho

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!