Question

It is given ab/a+b=2,ac/a+c=5,BC/b+c=4,Find the value of a+b+c.

Answer 1

That's the correct answer

Answer 2

Answer:

a + b + c = (10ab + 5bc + 4ac)/ 10

Step-by-step explanation:

Hey Mate,

Given Data,

ab/(a + b) = 2 ; ab/2 = a + b

ac/(a + c) = 5 ; ac/5 = a + c

bc/(b + c) = 4 ; bc/4 = b + c

So,

a + b +  a + c + b + c = ab/2 + bc/4 + ac/5

2(a + b + c) = ab/2 + bc/4 + ac/5

2(a + b + c) = (10ab + 5bc + 4ac)/ 20

So,

a + b + c = (10ab + 5bc + 4ac)/ 10