Average of a and b is 800 average of c and d is 1000 then find the average of a b c d
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Step-by-step explanation:
a=400,b=400,c=500,d=500
a+b+c+d/4
1800/4
=425
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Answer: 900
Step-by-step explanation: a+b=1600,c+d=2000. 1600+2000=3600,3600/4=900...remainber the average of a&b is 800so a=800,b=800and average of c&d is 1000,so c=1000 &d=1000..
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