Question

If x is directly proportional to y and x1 =4, y1 = 20 and x2 =2 then the value of y2

is_
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Answer 1

Answer:

if X and Y are directly proportional their ratio will be same

so x1/y1=4/20=1/5

so,

x2/y2=1/5

so y2=5*x2

= 10