1.

If bara=4bari+5barj-bark, barb=bari-4barj+5bark, barc=3bari+barj-bark such thatbarpbotbara,barpbotbarb and barp.barc=21 , thenbarp=

Answer»

`6(bari+barj+bark)`
`7(bari+barj+bark)`
`6(bari-barj-bark)`
`7(bari-barj-bark)`

ANSWER :D


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