Question

Find the number of 6 digit numbers that can be formed by using the digits 0, 1, 3, 5, 7, and 9. These digits shall be divisible by 10 and no digit shall be repeated?​

Answer 1

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$\Large\fbox{\color{purple}{QUESTION}}$

Find the number of 6 digit numbers that can be formed by using the digits 0, 1, 3, 5, 7, and 9. These digits shall be divisible by 10 and no digit shall be repeated?

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$\Large\fbox{\color{purple}{ SOLUTION }}$

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➡️The number which has a 0 in its units place is divisible by 10.

➡️If we put 0 in the unit place, _ _ _ _ 0, there will be as many ways to fill 5 vacant places. (1, 3, 5, 7, 9)

➡️The five vacant places can be filled in 5! ways = 120.

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Answer 2

Answer:

➡ SOLUTION:-

➡️The number which has a 0 in its units place is divisible by 10.

➡️If we put 0 in the unit place, _ _ _ _ 0, there will be as many ways to fill 5 vacant places. (1, 3, 5, 7, 9)

➡️The five vacant places can be filled in 5! ways = 120.✔✔

Step-by-step explanation:

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