Question

what will replace question mark 350:222::30:?​

Answer 1

Pro of means = pro of ext.

222 × 30 = 350 × X

X = (222×30)/350

X = 19(approx.)

Answer 2

The missing value is 19.

Step-by-step explanation:

Given : Expression 350:222::30:?​

To find : What will replace question mark ?

Solution :

We know that,

If a:b::c:d then $\frac{a}{b}=\frac{c}{d}$

Here, a=350, b=222, c=30 and d=?

Substitute the value,

$\frac{350}{222}=\frac{30}{d}$

$d=\frac{30\times 222}{350}$

$d=19$

Therefore, the missing value is 19.

#Learn more

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