CBSE Class 10 Answered
Question
Asked by | 02 Dec, 2008, 02:52: PM
Expert Answer
Let Maths marks = x and Science marks = y
x +y = 28, so x = 28-y
(x+3) ( y - 4 ) = 180
(28 - y +3 )( y - 4 )= 180
(31- y ) ( y - 4 ) = 180
Expand , bring constant to RHS. It will be a quadratic in y , then solve
Answered by | 02 Dec, 2008, 03:13: PM
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