Question

solve it:- a:6=20:40​

Answer 1

Answer:

$\frac{a}{6} = \frac{20}{40}$

$a = \frac{20}{40} \times 6$

$a = \frac{1}{2} \times 6$

$a = 3$

Hope it will help you

Answer 2

The value of a is 3.

Explanation:

• A ratio describes the number of times one number contains another.

When two ratios are given equal , then the statement is knwn as proportional.

For ex : a:b = c:d

We are given to solve : a:6=20:40​

We can write ratios in the form of fraction as

$\dfrac{a}{6}=\dfrac{20}{40}\\\\\Rightarrow\ \dfrac{a}{6}=\dfrac{20}{2\times20}\\\\\Rightarrow\ \dfrac{a}{6}=\dfrac{1}{2}\\\\\Rightarrow\ a=\dfrac{6}{2}\\\\\Rightarrow\ a=\dfrac{2\times3}{2}\\\\\Rightarrow\ a=3$

Hence, the value of a is 3.

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