Question

If y is directly proportional to
1/x and x = 5 when y = 20,
what is the value of x when y
= 1.25.
(1) 60
(2) 80
(3) 100
(4) 120​

Answer 1

704 મત

y is directly proportional to 1/xxy=k (where k is constant)so,for x=2 and y=20k=xyk=2×20k=40-(1)now ...