Question 209
How many such digits are there in the number 5231698 each of which is as far away from the beginning of the number as when the digits are rearranged in ascending order ?
Solution
After reaaranging the digits we get, 1235689
Now, the pairs of digit 1&5, 2&3 and 8&9 have same distance from one another as that in the arrangement 5231698.
There are evidently three such pairs.
Hence, the correct option is D.
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