Question

15.
a) none
A mobile number consists of ten digits. The first four digits of the number
are 9,9,8 and 7. The last three digits are 3,5 and 5. The remaining digits are
distance and make the mobile number, the greatest possible number. What
are these digits?
a) 6,2,4
b) 6,4,2
C) 6,5,4
d) 6,0,5​

Answer 1

option b) should be the answer i.e. 6, 4, 2 .

Step-by-step explanation:

A mobile number consisting of 10 digits.

If the first four digits of number are 9,9,8 and 7 and the last three digit are 3,5 and 5.

So, 3,5,7,8,9 these 5 digits are used.

Remaining three digits are distinct, so they must be among 0,1,2,4,6, and can be used only once.

The greatest possible three digit number made by these numbers is 642

Remaining digits are is 6,4 and 2.....

Thanks!