Question

plz send the answer ​

Answer 1

Let, the required number be x.

A/Q,

$\frac{50 + x}{80 + x} = \frac{4}{5} \\ = > 5(50 + x) = 4(80 + x) \\ = > 250 + 5x = 320 + 4x \\ = > 5x - 4x = 320 - 250 \\ = > x = 70$

Therefore, answer : (A) 70

Answer 2

Answer:

Step-by-step explanation:

It must be 70 because

50+70=120 and

80+70=150

therefore 120/150=4/5