sarah is in a room with 6 other children. If the other children are 2, 4, 5, 8, 10, and 13 years old, is sarah 7 years old? (1) the age of the fourth oldest child is equal to the average (arithmetic mean) of the seven children’s ages. (2) sarah is not the oldest child in the room.
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No, sarah is 6 years old .
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solution
avg be x
if sarah = 7 year old
x =(2+4+5+8+10+13+7)/7
x= 7
so,
yes Sarah is 7 year old and she is the 4th oldest child
hope that helped..
please mark my answer as brainliest
avg be x
if sarah = 7 year old
x =(2+4+5+8+10+13+7)/7
x= 7
so,
yes Sarah is 7 year old and she is the 4th oldest child
hope that helped..
please mark my answer as brainliest
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