The following are the ages (years) of 5 people in a room 16,25,23,12,17 a person enters the room the mean age of 6 people is now 20 what is

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The following are the ages (years) of 5 people in a room 16,25,23,12,17 a person enters the room the mean age of 6 people is now 20 what is the age of the person who entered the room

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Thiên Thanh 3 years 2021-08-12T21:21:13+00:00 1 Answers 31 views 0

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  1. Amity
    0
    2021-08-12T21:22:49+00:00
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    Answer:he age of the person who entered the room = 27 years

    Step-by-step explanation:

    Step 1

    Mean  Age  = total of the ages of observation / numbers of people with the ages

    Step 2

    Let the sixth person’s age be represented as x

    such that the mean ages of the 6 people inside the room be given as

    Mean =Total ages  of 6 people / 6  

    20 = Total ages  of 6 people / 6  

    (16+25+23+12+17+ x) / 6 = 20

    93+ x / 6 = 20

    93+ x= 6 x 20

    93+ x= 120

    x= 120 – 93

    x=27

    the age of the person who entered the room = 27 years

     

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