Today Puzzle #575
Puzzle No. 575 鈥� Wednesday 25 September
On Friday 75 people turned up at Area 51, a secretive military base in Nevada rumoured to house secrets about extra terrestrial life. If four times as many people want to travel in a spacecraft compared with just seeing one, and each craft can take up to 8 people, how many space craft are needed to take all the passengers away from earth?
Today’s #PuzzleForToday has been set by Dr Shaun Fitzgerald, Director of The Royal Institution
Click here for the answer
If 4 in 5 people want to travel, then this is (75/5)x4=60 travellers. 60/8=7.5. Therefore 8 craft are needed although not all of them will be full.
-
![]()
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...
