Question

plz explain step by step​

Answer 1

Answer:

a. 30

Step-by-step explanation:

5 : 7 :: x : 42

We know that,

7 * a = 42

⇒ a = $\frac{42}{7}$

⇒ a = 6

So now we multiply the value of a to get x

⇒ x = 5a

⇒ x = 5 * 6

⇒ x = 30

That is your answer!

I hope you understood the steps.