80%of a number is equal to the $$\frac{{\text{4}}}{{\text{5}}}$$ th of the other number. what is the ratio between the first number and the second number respectively ?

80%of a number is equal to the $$\frac{{\text{4}}}{{\text{5}}}$$ th of

1.	80%of a number is equal to the $$\frac{{\text{4}}}{{\text{5}}}$$ th of the other number. what is the ratio between the first number and the second number respectively ?
A.	: 4
B.	: 5
C.	: 3
D.	one of these
Answer» E.