Published by:
CGP EDU Academic Team
Published on: August 12, 2026
If 
is a set with 10 elements and 
, then the number of elements in 
is 
.
Text Solution
Verified by ExpertsThe correct answer is:
90
(90)
and 
can take 10 elements each. In 
can take 10 elements, then 
can take 9 elements since 
and 
are not same. So, total number of elements in 
is 
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