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OpenStudy (anonymous):
The average of five numbers is 34. If three numbers are 28,30 and 32. What is the average of other two? a.40 b.50 c.60 d.70
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OpenStudy (anonymous):
it has to be 40
OpenStudy (anonymous):
(28+30+32+x+x)/5 = 34 90+2x = 170 2x=80 x=40
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