Question

1. If x and y vary inversely with each other then find the value of the missing numbers in the given table. x-9,_,81,243. y-27,9,_,
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Answer 1

Step-by-step explanation:

x 124 b 2d y 5a6 c3x and y vary inversely

x=yk

xy= constant

x1y1=x2y2=x3y3=x4y4=x5y5

⇒12(5)=4a=6b=2c=3d

⇒a=412×5;b=612×5;c=212(5);d=312(5)

⇒a=15;b=10;c=30;d=20

 x 12 410 2 20  y 5 15 6 30 3