Question

If a:b equal to 5:7,then (3a+5b):(5a-2b)equal to?

Answer 1

Answer:

50

__

11

Step-by-step explanation:

a=5

b=7

substitute the values of a and b in the equaltion

(3*5+5*7)

________

(5*5-2*7)

(15+35)

______

(25-14)

50

__

11

Answer 2

Answer: 25 : 2

Step-by-step explanation:

Let a be 5x and

b be 7x

Acc. To question,

(3a + 5b) : (5a - 3b)

{(3)(5x) + (5)(7x)} : {(5)(5x) - (3)(7x)}

(15x + 35x) : (25x - 21x)

(50x) : (4x)

Now, x gets cancelled and also 4 and 50 get cancelled and we get :

25 : 2

Hope it helps