 
 <prompt> Colston ya san cewa mai shi ne ya yi kafe da kuma ya so ya ganin yadda ta sha kowanne mako kowanne mako. Ya gan shi ya samu cewa ta yi 20-unsa thermos da kuma lokacin ta yi kafe ta sauke 1/2 cup na madara a cikin, kuma ta bude kafe har sai ta tafi. Ta yi wannan dubu mako mako. Bayan ranar shekara biyu da rabi, ya nuna mata, kuma lokacin ta ga yadda kowanne kafe ta sha, ta so ta sha 1/4 daga abin da ta sha a kananan wata. Me yasa ta sha yanzu kowanne mako kowanne mako? <response>: ```1/2 a cup = 4 ounces
Each thermos contains 16 ounces of coffee because 20 - 4 = 16
She drinks 32 ounces a day because 2 x 16 = 32
She drinks 160 ounces a week because 32 x 5 = 160
She starts drinking only 40 ounces because 160 / 4 = 40

The answer will be 40.``` 