این وسط چی به تو می رسه؟

Question

مشابه این جمله رو میخام. وقتی این جمله رو بکار میبریم که کسی (معمولا غریبه) قصد کمک داره و ما نمی دونیم چرا کمک میکنه.         

Answer 1

My suggestions :
Almost Polite : What is your concern for helping us regarding this issue?
Not so polite : What (benefit / profit) will come (out) of it for you?
 

البته این دوتای پایینی offensive هستند که ممکن است اساساً با موقعیت مثالی که زدید همخوانی نداشته باشند :

Why are you taking up the cudgels in this case?
take up the cudgels
to engage vigorously in a defense or dispute (Webster)
 

Whom are you beating the drum for (in this case?
bang/beat the drum for sb/sth
to speak eagerly in support of someone or something
The company is banging the drum for their new software. (Webster)

Answer 2

چیزی که رایج هست و معمول:

What is in it for you?

What do you get from this?

What do you get out of it?

What do you get out of all this?

Why are you doing this?

Comments

What's in it for you?

احسنت. رایج ترین و طبیعی ترین معادله. +1.