Q. 1 C3.9( 12 Votes )
Observe the following tables and find which pair of variables (x and y) are in inverse proportion
Answer :
x1 = 90, y1 = 10 
x1y1 = 900
x2 = 60, y2 = 15 
x2y2 = 900
x3 = 45, y3 = 20 
x3y3 = 900
x4 = 30, y4 = 25 
x4y4 = 750
x5 = 20, y5 = 30 
x5y5 = 600
x6 = 5, y6 = 25 
x6y6 = 175
x1y1 =x2y2 =x3y3≠x4y4≠x5y5≠x6y6
(x1,y1), (x2,y2), (x3, y3) are in inverse proportions.
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