Question

A shop ordered textbooks notebook and pens in the ratio 5:3:1 if 20 textbooks where ordered how many pens where ordered ​

Answer 1

Answer:

Step-by-step explanation:

Let the no. of textbooks,notebooks and pen be=

5x,3x,x

5x=20

x=4

Pens=x

x=4

4 pens were ordered

Answer 2

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Appropriate Question

A shop ordered textbooks ,notebooks,and pens in the ratio 5:3:1.If 20 textbooks were ordered,How many pens were ordered ?

Given

➢ Textbooks,Notebooks,and pens ordered by a shop are in ratio 5:3:1, respectively.

➢ Number of textbooks ordered = 20

To Find

➢ Number of pens ordered

Solution

➢ The ratio of the number of textbooks to the number of pens ordered is 5:1.

➢ Number of texbooks ordered : Number of pens ordered = 5 : 1.

➢ $\sf{ \frac{20}{number \: of \: pens \: ordered}} = \frac{5}{1}$

➢ $\sf{ \frac{20}{number \: of \: pens \: ordered}} = \frac{5 × 4}{1 × 4}$

➢ $\sf{ \frac{20}{number \: of \: pens \: ordered}} = \frac{20}{4}$

Hence,the number of pens ordered is 4.

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