The ratio of urea and potash in a mixed fertilizer is 7 : 3. Express the quantity of urea present as percentage of the total amount of fertilizer.

The ratio of urea and potash in a mixed fertilizer is 7 : 3. Express t

1.	The ratio of urea and potash in a mixed fertilizer is 7 : 3. Express the quantity of urea present as percentage of the total amount of fertilizer.
A.	0%
B.	0%
C.	0%
D.	0%
Answer» E.