In a survey of 420 people, 230 use samsung mobile, 180 use iphone, 90 use both ,find the number of p

Discussion in 'Calculator Requests' started by math_celebrity, Jul 31, 2020.

Tags:
  1. math_celebrity

    math_celebrity Administrator Staff Member

    In a survey of 420 people, 230 use samsung mobile, 180 use iphone, 90 use both ,find the number of people who don't use either of them

    People who don't use both is:
    420 - (230 + 180 - 90)
    420 - (320)
    100
     
    math_celebrity, Jul 31, 2020
    #1

Share This Page