Question

The costs of two articles are in the ratio 7: 4. If the cost of the first article is 2,800, foo
the cost of the second article.
3 와
If the cost of the second article is x = 7:4 = 2800 : x​

Answer 1

Given

• The costs of two articles are in the ratio 7: 4. If the cost of the first article is 2,800

We Find

• Cost of the second article

We Know

We Solve the equation by Ratio and proporation

According to the question

$\sf { \frac{7}{4} = \frac{2800}{X} }$

$\sf {X = \frac{2800 × 4}{7} }$

$\sf {X = \frac{11,200}{7} }$

$\sf {X = \cancel\frac{11,200}{7} }$

$\sf \boxed {\red {X = 1600}}$

Hence, Cost of Second Article is Rs. 1600.

Answer 2

Step-by-step explanation:

Given

The costs of two articles are in the ratio 7: 4. If the cost of the first article is 2,800

We Find

Cost of the second article

We Know

We Solve the equation by Ratio and proporation

According to the question

\begin{gathered} \sf { \frac{7}{4} = \frac{2800}{X} } \\ \\ \end{gathered}

4

7

=

X

2800

\begin{gathered} \sf {X = \frac{2800 × 4}{7} } \\ \\ \end{gathered}

X=

7

2800×4

\begin{gathered} \sf {X = \frac{11,200}{7} } \\ \\ \end{gathered}

X=

7

11,200

\begin{gathered} \sf {X = \cancel\frac{11,200}{7} } \\ \\ \end{gathered}

X=

7

11,200

\begin{gathered} \sf \boxed {\red {X = 1600}} \\ \\ \end{gathered}

X=1600

Hence, Cost of Second Article is Rs. 1600.