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kow [346]
3 years ago
9

The following are the ages (years) of 5 people in a room:

Mathematics
2 answers:
Rzqust [24]3 years ago
6 0

Answer:

57 years

Step-by-step explanation:

total=25*6=150

17+21+15+15+25+x=150

93+x=150

x=150-93

x=57

Alexxandr [17]3 years ago
3 0

Answer:

age=57

Step-by-step explanation:

ages=17 21 15 15 25 ?

17+21+15+15+25=93(old mean)

17+21+15+15+25+?=25(new mean)

25(new mean)*6(number of numbers)=150

?=150-93=57

= 57

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