Question

Find the value of x
20:400=12:x​

Answer 1

Answer:

Product of mean =product of extreme

Mean = 400×12

Extreme = 20x

$= x = \frac{400 \times 12}{20} \\ \\ = x =20 \times 12 \\ \\ x = 240$

So, value of x = 240

Answer 2

Answer:

20:400 : : 12:x

$= \frac{20}{400} = \frac{12}{x}$

$= > x = \frac{12 \times 400}{20}$

$= > x = 240$