Published by:
CGP EDU Academic Team
Published on: August 12, 2026
There are six letters L 1 , L 2 , L 3 , L 4 , L 5 , L 6 and their corresponding six envelopes E 1 , E 2 , E 3 ,
E 4 , E 5 , E 6 . Letters having odd value can be put into odd value envelopes and even value
letters can be put into even value envelopes, so that no letter go into the right envelopes, then
number of arrangements equals.
Text Solution
Verified by ExpertsThe correct answer is:
D
L 1 L 3 L 5 L 2 L 4 L 6
E 1 E 3 E 5 E 2 E 4 E 6
Number of ways = 3 ! 
. 3 ! 
= 4
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