FIND OUT THE ELECTRONIC CONFIGURATION. . Helium (Z=2, A=4) 2. Boron (Z=5, A =11) 3. Oxygen (Z=8, A=16) 4. Silicon ( Z=14, A =28) 5. Argon (Z=18, A= 40)
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Explanation:
CP of 1 article is x.
CP of 10 articles is 10x=SP of 9 articles.
CP of 9 articles =9x
Profit=SP−CP
=10x−9x=x
Profit(%)=CPprofit×100
=9xx×100
=9100=1191%
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