Question

9: 50 :: ? : 105
A. 22
B. 18
D. 20
C. 15​

Answer 1

The answer is 20.

Step-by-step explanation:

Given- 9 : 50 :: ? : 105

$= > 9 \times 5 + 5 = 50$

similarly,

$= > x \times 5 + 5 = 105$

$= > x \times 5 = 100$

$= > x = \frac{100}{5}$

$= > x = 20$

The answer is 20.

Answer 2

Option B - 18

Step-by-step explanation:

Given : Expression $9: 50 :: ? : 105$

To find : The missing number?

Solution :

Let the missing number be 'x'.

So, 9: 50 :: x : 105

We know,

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

Here a=9, b=50, c=x and d=105

$\frac{9}{50}=\frac{x}{105}$

$x=\frac{9\times 105}{50}$

$x=18.9$

Therefore, approximately the missing value is 18.

So, option B is correct.

#Learn more

If a:b::c:d then c=?​

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