Mathematics Past Questions and Answers

A student measured the length of a book to be 8.5 cm. If the actual length of the book is 8.6 cm, find her percentage error.

A train is traveling at an average speed of 20 m/s. Its speed in kilometres per hour is

A cylinder of base radius 5 cm is open at one end. If its height is 10 cm what is the ratio of its base area to its curved surface area?

Evaluate \(\log_{10} 10000\).

A carpenter measured the length of a board to be 5.60 m. If the actual length is 5.55 m, find his percentage error.