Solve 1) A and B are friends and their ages differ by 2 years. A's father D is twice as old as A and B is twice as old as his sister C. The age of D and C differ by 40 years. Find the ages of A and B.
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Solve 1) A and B are friends and their ages differ by 2 years. A's father D is twice as old as A and B is twice as old as his sister C. The age of D and C differ by 40 years. Find the ages of A and B.
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Answer:
Step-by-step explanation:
Let A's age be x
B's age = x + 2
D's age = 2x
C's age =
2x - (x+2)/2 = 40
4x/2 - (x+2)/2 = 40
(4x - x - 2)/2 = 40
(3x - 2)/2 = 40
3x - 2 = 80
3x = 78
x = 26
x + 2 = 28
Therefore, A's age is 26, B's age = 28.
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