Question

the initial value of x and y are 5 and 6 , respectively. If x is inversely proportional to y, then which of these final values will x and y not assume? OPTIONS ARE (a) x=10 and y=3
(b) x=30 and y=1
(c) x=12 and y=16
(d) x=60 and y=1/2​

Answer 1

Answer:

(c) x=12 and y=1/2

Step-by-step explanation:

x is inversely proportional to y means if x increases then y would decrease in the same proportion. In the equation form x=k/y or k=x×y where k is the constant. Given the values of x and y, k=30. Putting the values of x and y from the options a. x=10 and y=3 k=xy=30

b.30 d.60×1/2=30 but c.12×16=192. So we cannot assume x=12 and y=16.