Q1 of 32 Page 239

Observe the following tables and find which pair of variables (x and y) are in inverse proportion

x1 = 100, y1 = 60 x1y1 = 6000

x2 = 200, y2 = 30 x2y2 = 6000


x3 = 300, y3 = 20 x3y3 = 6000


x4 = 400, y4 = 15 x4y4 = 6000


x1y1 = x2y2 = x3y3 = x4y4


Therefore, x and y are in inverse proportions.


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