The ages of mark and adam add up to 28 years total. mark is 20 years older than adam. how many years old is adam

Question

Mathematics

Matthias Zhang

26 September, 00:38

The ages of mark and adam add up to 28 years total. mark is 20 years older than adam. how many years old is adam

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Answers (1)

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Anderson Hunt · Answer 1

Let x be the age of Mark, and y be the age of Adam. From the relationships given, we can formulate the following equations:

Eqn 1: x + y = 28

Eqn 2: x = 20 + y

Subsituting Eqn 2 to Eqn 1,

20 + y + y = 28

2y = 28 - 20 = 8

y = 8/2 = 4

Therefore, Adam is 4 years old.