Question

The teacher tells the class that the highest marks obtained by a student in her class is twice the lowest mark plus 7. The he highest score is 87. (Take the lowest score to be L
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Answer 1

If we have lowest marks as L ,

87= 2(l +7)

87=2l+7

87-7=2l

80=2l

80/2=l

40=l

Therefore, lowest marks would be 40.