 
<translate> Cary ya yi tafiyar mil 3 zuwa kantin sayar da kayan masarufi, inda ya sayi kuma ya ci bar ɗin cakulan tare da adadin kuzari 200. Idan Cary ya ƙone calories 150 a kowace mil da ya yi tafiya, menene ƙarancin adadin kuzari na Cary (wanda aka bayyana a matsayin lamba mai kyau)? Ka ba ni dalilai, kafin ka amsa tambaya <eng> Cary walks 3 miles round-trip to the grocery store, where he buys and eats a candy bar with 200 calories. If Cary burns 150 calories per mile walked, what's Cary's net calorie deficit (expressed as a positive number)? Give me reasons, before answering the question 