Question

if x and y vary directly , find the value of the missing number in the following table. ​

Answer 1

Answer:

Missing numbers : m =14, p = 28, r = 56

Explanation:

x and y vary directly so x=ky (k is a constant)

x = 42

y = 24

42=k×24

k = 42/24= 7/4

k=7/4

x =?

y = 8

x = 7/4 × 8 = 7×2 =14

x=14

y = 16

x = 7/4× 16 = 7×4=28

x=28

x = 98

y =?

$98 = \frac{7}{4} \times y$

$y = 98 \times \frac{4}{7}$

y = 14×4 = 56