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.

120%
250%
360%
470%

Answer:- 1

Explanation:-

Solution:

\begin{aligned} Required percentage \\ = (\frac{7}{7 + 3} \times 100) % \\ = (\frac{7}{10} \times 100) % \\ = 70 % . \end{aligned}

$\eqalign{ & {\text{Required percentage}} \cr & = \left( {\frac{7}{{7 + 3}} \times 100} \right)\% \cr & = \left( {\frac{7}{{10}} \times 100} \right)\% \cr & = 70\% . \cr}$

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", "dateCreated": "7/24/2019 10:09:12 AM", "author": { "@type": "Person", "name": "Nitin Sir" } }, "suggestedAnswer": { "@type": "Answer", "text": "

Solution:

\begin{aligned} Required percentage \\ = (\frac{7}{7 + 3} \times 100) % \\ = (\frac{7}{10} \times 100) % \\ = 70 % . \end{aligned}

$\eqalign{ & {\text{Required percentage}} \cr & = \left( {\frac{7}{{7 + 3}} \times 100} \right)\% \cr & = \left( {\frac{7}{{10}} \times 100} \right)\% \cr & = 70\% . \cr}$ ", "dateCreated": "7/24/2019 10:09:12 AM" } }