 
 <prompt> ```One pharmacy dey buy tubs wey dem go use make prescription for the week. Dem get 20 tubs wey dey remain for store but dem need total of 100 tubs for the week. From the tubs wey dem still need to buy, dem buy quarter from new vendor before dem decide say make dem go their usual vendor for the rest. How many tubs the pharmacy go buy from the usual vendor?``` <response>: Dem don get 20 tubs for store already, so dem jus need buy 100 tubs wey dem need - 20 tubs wey dey for store = 80 tubs.
From di new vendor, dem buy 80 tubs / 4 = 20 tubs.
Dem get total of 20 + 20 = 40 tubs now.
Dem go buy 100 needed tubs - 40 owned tubs = 60 tubs from di usual vendor.

Answer na 60. 