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.

Answer 1

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