exam
Maths Puzzle
Numerical Ability
If 3x+y=90 and 10<=x<=25 what is the least possible value of y?
And alss slove for d
d=3x/y*y+1/x
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Find an equation for the family of lines that pass through the intersection of 5x-3y+11=0 and 2x-9y+7=0.
This is what I tried (2)5x-(2)3y+11=0
(3)2x-(3)9y+