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11-01-2017
Mathematics

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Four friends were born in consecutive years. The sum of their ages is 62. What is the age of the oldest friend

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apologiabiology apologiabiology

11-01-2017

consecutive is 1 year apart
the ages aer
x,x+1,x+2,x+3

sum is 62

x+x+1+x+2+x+3=62
4x+6=62
minus 6 both sides
4x=56
divide both sides by 4
x=14
oldest friend is x+3
x+3=14+3=17
oldest friend is 17

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