Today Puzzle #725
Puzzle No. 725鈥� Wednesday 24 April 2020
I am running for my daily 1 hour of exercise during lockdown. I started by managing 5km. Each week I am able to go 10% further. How many weeks will it take me to reach 10km within an hour?
Today’s #PuzzleForToday has been set by Dr Shaun Fitzgerald, Fellow of Girton College
Click here for the answer
The distance D travelled after n weeks is D=5km x (1+10%)n. D first exceeds 10km when n=8 weeks.
-
![]()
Puzzle for Today 鈥� Index
Find all of the currently available Puzzles for Today, with answers.
More fiendish brain-teasers and quizzes on 大象传媒 Radio...
-
![]()
From autumn leaves to the magic roundabout: test yourself with our favourite quizzes.
-
![]()
We asked the intelligence agency to set our listeners a code-cracking challenge... Can you solve it?
-
![]()
Quiz: How many of these Mastermind music questions can you answer?
Here's a chance to find out whether your specialist subject on Mastermind could be the entire history of music.
-
![]()
Six conundrums to grapple with, including the Riddle of the Sphinx. Try not to forfeit your life...
