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The age of father six years ago is six times the age of his daughter. Three years hence, the father will be thrice as old as his daughter. What is the present age of the daughter?

A12 years

B17 years

C15 years

D20 years

Answer:

A. 12 years

Read Explanation:

age of father six years ago is six times the age of his daughter F-6=6(D-6) F-6=6D-36 F=6D-30 Three years hence, the father will be thrice as old as his daughter F+3=3(D+3) F+3=3D+9 F-3D=6 Sub F value 6D-30-3D=6 3D=36 D=12 years


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