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Question
A mobile number consists of ten digits. First four digits are 9,9,7 and 9. Make the smallest mobile number by using only one digit twice from 8, 3, 5, 6, 0
Solution
Given, total number of digits = 10
And first four digits of the mobile number = 9, 9, 7, 9 Also, given digits = 8, 3, 5, 6, 0
Now, to make the smallest mobile number, we will use the smallest digit twice, i.e. 0.
Required mobile number = 9979003568
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