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26-04-2017
Mathematics

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What is the Q1 value of 2, 4, 6, 8, 10, 12, 14

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ghanami ghanami

26-04-2017

hello :
14-12=12-10=10-8=8-6=6-4=4-2=2....(common diferance).. arith -secquence
2+4+6+8+10+12+14= 7/2(2+14)=56.....(formula :n/2(A1+A7) )

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