Koos

An "age" word problem

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10.00 USD /single lesson (20 min.)
Science / Math

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General information

nick Koos
country South Africa
languages Afrikaans, English
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Education

Third year B.Ed student

Experience: 18 years

About me

Frank is 15 years younger than John. In 5 years John will be twice as old as Frank. How old will Frank be in four years?