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If the parallel mean of 5,10,15, R, 20,35 and 40 is 21, then the value of R will be (a) 18 (b) 22 (c) 25 (d) 30 |
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Answer» ONG>ANSWER: Step-by-step explanation: 5+10+15+r+20+35+40/7=21 125+r=147 r=22 |
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