CAT 2020 Question Paper | CAT Verbal Ability Slot 1
Question :
The mean of all 4 digit even natural numbers of the form 'aabb', where a>0, is
Started 3 months ago by Shashank in
Option C
is the correct answer.
Explanatory Answer
The even numbers will be of the form
1100, 1122, 1144, 1166, 1188
2200, 2222, 2244, 2266, 2288 and so on
There will be 45 such numbers from 1100 to 9988, the mean will be the 23 number which is 5544
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