GENERAL KNOWLEDGE

Detailed explanation-1: -The number of seconds in a minute-and minutes in an hour-comes from the base-60 numeral system of ancient Mesopotamia. Developed around 3100 B.C., the sexagesimal system, as it is known, has fallen out of favor but is still used (with slight adjustments) to measure time and angles.

Detailed explanation-2: -The history of Mesopotamian and Egyptian mathematics is based on the extant original documents written by scribes. Although in the case of Egypt these documents are few, they are all of a type and leave little doubt that Egyptian mathematics was, on the whole, elementary and profoundly practical in its orientation.

Detailed explanation-3: -Sexagesimal, also known as base 60 or sexagenary, is a numeral system with sixty as its base. It originated with the ancient Sumerians in the 3rd millennium BC, was passed down to the ancient Babylonians, and is still used-in a modified form-for measuring time, angles, and geographic coordinates.

Detailed explanation-4: -The Babylonian number system uses base 60 (sexagesimal) instead of 10. Their notation is not terribly hard to decipher, partly because they use a positional notation system, just like we do.