 
<translate> 7 daga cikin mutane 40 a cafeteria suna sanye da riguna masu kwalliya. Sauran mutanen suna sanye da madaidaiciya madaidaiciya da madaidaiciya madaidaiciya. Yawan mutanen da ke sanye da madaidaiciyar madaidaiciya ya ninka sau 4 na mutanen da ke sanye da riguna masu kwalliya. Mutane nawa ne ke sanye da madaidaiciyar layi? Bari mu yi tunani da farko. Sarkar tunani: <eng> 7 out of 40 people in a cafeteria are wearing checkered shirts. The rest of the people are wearing vertical stripes and horizontal stripes. The number of people wearing horizontal stripes is 4 times as many as the people wearing checkered shirts. How many people are wearing vertical stripes? Let's think first. Chain of thought: 