If there are two groups containing 30 and 20 observations and having 50 and 60 as arithmetic means, then the combines average is:
In my opinion, it is 54..if you think anything else, please state how??
THANKS in ADVANCE
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CPT maths query
Replies (7)
Avrage is 80.
satvir i think u r right..
it should be 54 only...
yeah, it should be 54. but model test paper is showing 56 as correct answer
Dude, correct answer is 54 only.
30*50=1500
20*60=1200
1500+1200=2700
2700/50=54
i think you are right
ya it is 54.by mistake d ans mst hav been printen 56
u r ryt ans is 54
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