Question

The value of y varies directly with x. When y= 2 4/7, x= 37 .

What is the value of y when x is 27 ?


1 5/7

2 3/7

3 1/7

3 4/7

Answer 1

Option (a).

Explanation:

The value of y varies directly with x. It would mean that,

y=kx, where k is constant

When

`y=2(4)/(7),x=(3)/(7)\\\\y=(18)/(7), x = (3)/(7)`

then,

`(18)/(7)=k* (3)/(7)\\\\k=6`

When x = 27,

`y=6* (2)/(7)\\\\y=(12)/(7)\\\\\text{or}\\\\y=1(5)/(7)`

So, the value of y is
`1(5)/(7)` when x is 27.