A survey of City A found an average (arithmatic mean) of 2 people per household and an average of 2 DVD players per household. If 48000 people live in City A, how many DVD players are there in City A?
সমাধান
সঠিক উত্তর: Option C
3.2 people live in 1 house hold 1 people live in 1/3.2 house hold 48000 people live in 48000/3.2 house hold=15000 household in 1 household the is 1.2 dvd in 15000 household 1.2x15000=18000 dvd