FINDING RATIOS FROM TABLES WORKSHEET

About "Finding ratios from tables worksheet"

Finding ratios from tables worksheet :

Worksheet on finding ratios from tables is much useful to the students who would like to practice problems on ratios.

Finding ratios from tables worksheet

Students in Mr. Webster’s science classes are doing an experiment that requires 250 milliliters of distilled water for every 5 milliliters of ammonia. The table shows the amount of distilled water needed for various amounts of ammonia.

Questions : 

1. Use the numbers in the first column of the table to write a ratio of distilled water to ammonia.

2. How much distilled water is used for 1 milliliter of ammonia?

3.  Use your answer from question 2, write another ratio of distilled water to ammonia.

4. Check whether the two ratios from answers of question 1 and question 2 are equivalent or not equivalent. 

5. Complete the table. What are the equivalent ratios shown in the table ?

Finding ratios from tables worksheet - Solution

Students in Mr. Webster’s science classes are doing an experiment that requires 250 milliliters of distilled water for every 5 milliliters of ammonia. The table shows the amount of distilled water needed for various amounts of ammonia.

Question 1 : 

Use the numbers in the first column of the table to write a ratio of distilled water to ammonia.

Answer :

100 ml distilled water / 2 ml ammonia  (or)  100 : 2

Question 2 : 

How much distilled water is used for 1 milliliter of ammonia?

Answer :

From the first column of the table, the ratio  of distilled water to ammonia is 

100 ml water / 2 ml ammonia

To find the quantity of distilled water used for 1 milliliter of ammonia, we have to make the second quantity (ammonia) as 1. 

100 ml distilled water : 2 ml ammonia  =  (100 ÷ 2) / (2 ÷ 2)

100 ml distilled water : 2 ml ammonia  =  50 / 1

That is,

50 ml distilled water / 1 ml ammonia  

The quantity of distilled water used for 1 milliliter of ammonia is 50 ml.

Question 3 : 

Use your answer from question 2, write another ratio of distilled water to ammonia.

Answer :

To write another ratio from the answer of question 2, we have find an equivalent ratio to 50 : 1.

To find equivalent ratio of the given ratio, we have to multiply both the terms of the ratio by the same non zero number, say "2".

Then, we have 

(50x2) : (1x2)  =  100 : 2

Therefore, another ratio of distilled water to ammonia is 100 : 2

Question 4 : 

Check whether the two ratios from answers of question 1 and question 2 are equivalent or not equivalent. 

Answer :

The two ratios from the answers of question 1 and 2 are 

100 : 2 and 50 : 1 

Let us check, whether two rations 100 : 2 and 50 : 1 are equivalent or not equivalent. 

From the above working, it is clear that the two ratios 100 : 2 and 50 : 1 are equivalent.

Question 5 : 

Complete the table. What are the equivalent ratios shown in the table ?

Answer : 

For the first blank :

(100 ÷ 2) / (2 ÷ 2)  =  50 / 1

(50 x 3) / (1 x 3)  =  150 / 3

For the second blank :

(100 ÷ 2) / (2 ÷ 2)  =  50 / 1  

(50 ÷ 2) / (1 ÷ 2)  =  25 / 0.5

(25 x 7) / (0.5 x 7)  =  175 / 3.5

For the third blank :

(100 x 2) / (2 x 2)  =  200 / 4

Then, we have

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