mscroggs.co.uk
mscroggs.co.uk

subscribe

Puzzles

Let the passenger train through!

A goods train, made up of a locomotive and 5 trucks, stops at a small station. The small station has a siding which the goods train can reverse into. The siding can hold an engine and two trucks or three trucks.
A passenger train arrives travelling in the opposite direction. How can they let it through? (The passenger train is too long to fit in the siding.)

Show answer & extension

If you enjoyed this puzzle, check out Sunday Afternoon Maths XXIII,
puzzles about , or a random puzzle.

Archive

Show me a random puzzle
 Most recent collections 

Advent calendar 2023

Advent calendar 2022

Advent calendar 2021

Advent calendar 2020


List of all puzzles

Tags

probability logic cards area books parabolas functions triangles remainders partitions crosswords multiples floors factorials decahedra fractions palindromes trigonometry tiling wordplay doubling determinants percentages matrices dominos means ellipses dodecagons spheres quadrilaterals menace grids sport cubics calculus algebra odd numbers probabilty tangents sequences speed taxicab geometry numbers median crossnumber people maths squares rectangles crossnumbers square numbers pentagons binary angles surds cryptic clues christmas money cube numbers hexagons irreducible numbers advent clocks polygons time square roots chalkdust crossnumber circles perimeter dice planes geometry indices complex numbers addition sum to infinity cryptic crossnumbers polynomials prime numbers folding tube maps star numbers tournaments geometric means lines the only crossnumber regular shapes colouring balancing games ave sets quadratics gerrymandering division consecutive integers dates range number integration even numbers symmetry graphs digital clocks consecutive numbers unit fractions combinatorics shape volume routes 3d shapes proportion geometric mean arrows elections integers coins scales perfect numbers albgebra expansions multiplication pascal's triangle axes digits triangle numbers digital products shapes 2d shapes chess mean bases differentiation factors rugby products coordinates sums chocolate averages

Archive

Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2012–2024