Question:
If x varies inversely as y and x = 4 when y = 6, then when x = 3 the value of y is _______.
Solution:
If x varies inversely as y, then
x×y = k
4×6 = k
k=24
Now, if x = 3, then y is;
y = k/x = 24/3 = 8
38. In direct proportion, a1/b1 = a2/b2
a1/b1 = a2/b2 = k
39. In case of inverse proportion, a2/a1= b2/b1
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