Question

if a:b:c=3:4:5,find the value of 3a-4c/2a-b+4c​

Answer 1

Answer:

answer is. -11 upon -10

Answer 2

Answer:

Let a be3x ,b be 4x and c be5x

3a-4c/2a-b+4c

3×3x-4×5x/2×3x-4x+4×5x

9x-20x/6x-4x+20x

-11x/22x

x=-1/2