CAT 2020 Question Paper | CAT Verbal Ability Slot 1

General

8 months ago

Question :

The mean of all 4 digit even natural numbers of the form 'aabb', where a>0, is

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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