\(समुच्चय (E={x:x\) एक सम अंक है}) में कितने अवयव हैं?
\(How many elements are there in (E={x:x\) is an even digit})?
Explanation opens after your attempt
B. (5)
Concept
The even digits are (0,2,4,6,8).
Why this answer is correct
There are (5) such digits.
Exam Tip
Remember that (0) is also an even digit. चरण 1: सम अंक (0,2,4,6,8) होते हैं। चरण 2: इनकी संख्या (5) है। चरण 3: याद रखें कि (0) भी सम अंक है।
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