SOLUTION: There are four children in a family. There were all born two years apart. The sum of their ages is 84. How old are the children?

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Question 186089: There are four children in a family. There were all born two years apart. The sum of their ages is 84. How old are the children?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let the youngest child's age be a
Their ages are then:
a, a+%2B+2, a+%2B+4,and a+%2B+6
a+%2B+a+%2B+2+%2B+a+%2B+4+%2B+a+%2B+6+=+84
4a+%2B+12+=+84
4a+=+72
a+=+18
a+%2B+2+=+20
a+%2B+4+=+22
a+%2B+6+=+24
Their ages are 18,20,22,and 24