D) None of these
- Father of Geometry is?
- A father tells his son, “I was of your present age when you were born”. If the father is 36 now, how old was the boy five years back if he is half the age of his father now?
- A father is twice as old as his son 20 years ago the age of the father was 12 times the age of the son. The present age of the father is?
- One of these scientists formulated basic laws of Geometry