Question

if x and y are inversely proportional, find the values of x1 and y3 in the table given

below:

x : x1 0.3 0.1

y : 10 50 y3​

Answer 1

Answer:

Since x and y are inversely proportional, we know that y=

x

Constant

⇒xy=Constant

⇒8×Y

1

=16×5

⇒8Y

1

=80

⇒Y

1

=

8

80

=10

Now,

⇒X

1

×4=16×5

⇒4X

1

=80

⇒X

1

=

4

80

=20

Now,

⇒X

2

×2=16×5

⇒2X

2

=80

⇒X

2

=

2

80

=40

Now,

⇒80×Y

2

=16×5

⇒80Y

2

=80

⇒Y

2

=

80

80

=1

∴X

1

=20,X

2

=40,Y

1

=10,Y

2

=1