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. 20%
B. 50%
C. 60%
D. 70%
Answer: Option D
Solution(By Examveda Team)
$$\eqalign{ & {\text{Required percentage}} \cr & = \left( {\frac{7}{{7 + 3}} \times 100} \right)\% \cr & = \left( {\frac{7}{{10}} \times 100} \right)\% \cr & = 70\% \cr} $$This Question Belongs to Arithmetic Ability >> Ratio
Related Questions on Ratio
If a : b : c = 3 : 4 : 7, then the ratio (a + b + c) : c is equal to
A. 2 : 1
B. 14 : 3
C. 7 : 2
D. 1 : 2
If $$\frac{2}{3}$$ of A=75% of B = 0.6 of C, then A : B : C is
A. 2 : 3 : 3
B. 3 : 4 : 5
C. 4 : 5 : 6
D. 9 : 8 : 10
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