The correct answer is D
A father is currently 3 times as old as his son. In 10 years, the father’s age will be twice that of his son. What are their present ages?
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A circle has a radius of 21 cm, and a sector makes an angle of 60° at the center. Find the area of the sector and the length of the arc (use π = 22/7...
The sum of the ages of a father and his son is 50 years. After 5 years, the father's age will be twice that of his son. What are their present ages?
