Question

(a+b):b=7:3 , then (3a-b):(7a-4b) is equal to-

Answer 1

Answer:

value equals to 1/16...

Step-by-step explanation:

I solved it..incase any doubts .. Comment' on it ...or else if any method if you know please share .. or if it is wrong please correct it ....

Thank you...

Answer 2

Answer:

3:4

Step-by-step explanation:

If a+b:b=7:3, a:b=4:3, because b:b=3:3, and 7-3=4. Then we can act like a=4 and b=3, and reduce afterwards.

(3(4)-3):(7(4)-4(3)

(12-3):(28-12)

9:16

3:4