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Q.4 a plz solve it jaldi |
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Answer» Answer: 6+a+16+13+b=40 a+b=5 Mean=7.2=(30+6a+112+104+9b)/40 7.2=(246+6a+9b)/40 288=246+6a+9b 6a+9b=42 2a+3b=14 2a+2b=10 2a+3b-2a-2b=4 b=4 a=1 |
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