Question

The costs of two articles are in the ratio 7:4. If the cost of the first article is rupee 2800;find the cost of the second article

Answer 1

Answer:The price of second article is RS 1600.


Explanation:Let the common multiple of ratio7:4 be x.
Therefore 7×x:4×x=7x:4x.
Therefore , price of first article is 2800rs.So,x=2800÷7=400.
So,x=400 ,so 4x=4×400=1600Rs.

The price of second article is RS 1600.

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Answer 2

GiveN :-

• Ratio of costs of two articles = 7:4
• Cost of first article = Rs. 2800

To FinD :-

• Cost of second article

SolutioN :-

Let the cost of the second article be x

7 : 4 = 2800 : x

$⇒ \sf\Large\frac{7}{4} = \frac{2800}{x}$

$⇒ \large\sf 7x = 2800 × 4$

$\Large\sf x= \frac{2800×4}{7}$

$\Large\sf x= \frac{\cancel{2800} \: ×4 }{\cancel7}$

$\Large\sf x= \frac{400×4}{7} =1600$

∴ Cost of the second article is $\large\boxed{Rs.1600}$

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