You may also like

problem icon

Archimedes and Numerical Roots

The problem is how did Archimedes calculate the lengths of the sides of the polygons which needed him to be able to calculate square roots?

problem icon


Weekly Problem 22 - 2012
What number could replace * so that */5 is between 3 and 4?

problem icon

More or Less?

Are these estimates of physical quantities accurate?

Time to Evolve

Stage: 4 Challenge Level: Challenge Level:1

Estimate lifespan and time to first offspring from those for the modern day equivalent creature.

Think about the point in the lifespan of a descendant at which the next descendant might have been produced.

Don't forget that this is an exercise in estimation and approximation: there is no 'right' answer, so try to put sensible guesses in the table.