Question

If x varies inversely as y and y=60 when x=1.5. Find x when y=4.5.​

Answer 1

Answer:

If x varies inversely as y

xy=k .... (i)

if x=1.5 and y=60

xy=1.5×60=90

k=90

When y=4.5 then from eq (1)

45×y=k

45×y=90

y= 90/4.5

=20