Question

write all the possible two digit number that can be formed by using the digits 7, 3 and 5, if the repetition of the digits is allowed​

Answer 1

Answer:

9 numbers.

Step-by-step explanation:

A two-digit number has two places.

The ten’s place can be filled in 3 ways; and for each of the ways, the unit’s place can be filled in 3 ways.

So, there will be 3*3 = 9 numbers. These are:

33, 35, 37, 53, 55, 57, 73, 75 and 77.

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Answer 2

Answer:

All the possibilities are 9(33,35,37,53,55,57,73,75,77)