Book Maths Puzzle Algebra

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a^2-3a-154=0

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Book Other Question

the boiling point of water varies with elevation. The elevation is 0 meters above sea level when the boiling point is 100 degrees celcius. When the Boiling point is 99 degrees celc A daughter is 28 years younger than her father. in five years, the father will be 3 times as old as his daughter. How old is each now?