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Find compound ratio of 4:5 and 3:8​

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Answer:

Correct answer is 21 : 50

We are given

Ratio 1 = 3:5

Ratio 2 = 7:10

The compound ratio found by Nikita for above two ratios = 7:10

Now, lets find out whether Nikita is right or wrong

The compound ratio is found by multiplying both the ratios

\frac{3}{5}*\frac{7}{10}

5

3

10

7

This can be simplified as

\frac{3*7}{5*10}

5∗10

3∗7

\frac{21}{50}

50

21

It can be written as

21 : 50

so our compound ratio is 21 : 50

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