Question

1. If x is 80% of y, what per cent of x is y?​

Answer 1

Answer:

20%

Step-by-step explanation:

let x+y=100

if x is 80

80+y= 100

y=100-80

y=20

Answer 2

Answer:

The answer is 125% . See the explanation

Step-by-step explanation:

x is 80% of y.

This means (80/100)×y=x

Now →y=(5x/4)

Let y be a%of x

then ,

a/100×x=y

a/100×x=5x/4

→4a×x=500x

→4a=500

a=125%

So, y is 125% of X.