Question

answer this question with explaination​

Answer 1

Step-by-step explanation:

(4) a = 2b

then,

a : b

2b : b

2 : 1 is your answer mate.

(5)

$\frac{50}{100} \times 150 + \frac{70}{100} \times 300 \\ 75 + 210 \\ 285$

This is your answer mate.

Please mark my answer as brainlist

Answer 2

Answer:

Correct option is (A)

Step-by-step explanation:

Given:

a = 2b

To find:

a:b

Solution:

We have do nothing , just substitute the value of a and we will get the answer.

a:b

2b:b

$2 \cancel{b} : \cancel{b}$

2:1

So, the answer is 2:1 . Correct option is (A)