The mean of the heights of 6 boys is 150cm. If the individual heights of five boys are 140cm, 143cm, 148cm, 150cm and 138cm, then find the hight of the sixth boy.
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heya friend,
here is your ans
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let the sixth boy's height be x
mean = 150cm
Mean = 140 + 143 + 148 + 150 + 138 + x/6 = 150cm
= 719+x /6 = 150 cm
719+x = 150×6
719+x = 900
x = 900-719 = 181 cm
hence, 181 cm is the height if the 6 th boy.
Hope it helps.
here is your ans
》》》》》》》》
let the sixth boy's height be x
mean = 150cm
Mean = 140 + 143 + 148 + 150 + 138 + x/6 = 150cm
= 719+x /6 = 150 cm
719+x = 150×6
719+x = 900
x = 900-719 = 181 cm
hence, 181 cm is the height if the 6 th boy.
Hope it helps.
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