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5pencils and 7pens together cost rs195 …

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5pencils and 7pens together cost rs195 while 7pencils and 5pens together cost rs153.find the cost of each one of the pencil and pen

    • Posted by Wafiya Firdouse 1 year, 10 months ago

    CBSE > Class 10 > Mathematics
    • 3 answers

    Aarti Mahato 1 year, 10 months ago

    Let pencil be x & pen be 7 7(5x + 7y = 195).....(1) 5(7x + 5y = 153) ....(2) 35x + 49y = 1365 35x + 25y = 765 -‐---------------------‐------- y=25 x= 4

    0Thank You

    Kartik Upreti 1 year, 10 months ago

    5x+7y=195—(1) 7x+5y=765—(2) 7×(5x+7y=195) 5×(7x+5y=765) 35x+49y=1365—(3) 35x+25y=765—(4) Elimination method se kar lena

    0Thank You

    Roshni Jain 1 year, 10 months ago

    5x+7y=195 7x+5y=153 ------------------

    0Thank You

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