Today Puzzle #715
Puzzle No. 715 鈥� Friday 10 April
A new study that looks at lifespan in wild mammals found that females live longer than males. In a particular species females live 50% longer than males. If equal numbers of males and females are born and the population remains constant, what is the proportion of females in the population?
Today’s #PuzzleForToday has been set by Dr Shaun Fitzgerald, Fellow of Girton College
Click here for the answer
The proportion of females is given by (1.5)/(1.5+1)=3/5=60%”
-
![]()
Puzzle for Today 鈥� Index
Find all of the currently available Puzzles for Today, with answers.
More fiendish brain-teasers and quizzes on 麻豆官网首页入口 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...
