Question

Question 6
The largest 4-digit number, using any one digit twice, from digits 5, 9, 2 and 6 is
(A) 9652
(B) 9562
(C) 9659
(D) 9965

Answer 1

Given digits are 5, 9, 2 and 6.
Descending order(highest value to lowest value) of the given digits is 9, 6, 5, 2.
Since we can use any one digit twice, we would repeat 9 twice in order to get the largest number possible.

So the required largest 4-digit number is 9965.