Question

If p and q vary inversely, find the value of 𝒙, 𝒚 and z.

Answer 1

Let us take the values of p and q from the first two columns of the table, we get:
or, 8 × 2.5 = 2 × x
or, 2x = 20 (constant)
or, x = 20/2 = 10

Let us take the values of p and q from the first and the third columns of the table, we get:
or, 8 × 2.5 = y × 5
or, 5y = 20 (constant)
or, y = 20/5 = 4

Let us take the values of p and q from the first and the fourth columns of the table, we get:
or, 8 × 2.5 = 10 × z
or, 10z = 20 (constant)
or, z = 20/10 =