Question

x varies directly with y and inversely with z .When y = 4 , 2 = 5 , then x = 3. Again if y = 16 , z = 30 , let us write by calculating the value of x​

Answer 1

Answer:

Explanation:

when z varies directly proportional to x means a division

c

=

z

x

where c is a constant of proportionality

when z varies inversely proportional to x it means a product

z

y

=

c

now with both

k

=

z

y

x

z

=

8

;

x

=

12

and

y

=

3

k

=

8.3

12

k

=

2