A rectangular field is twice as long as it is wide. If the perimeter of the field is 60 meters, what is the area of the field in square meters?
200 square meters
Let width be W. Length is 2W. Perimeter is 2(W + 2W) = 6W = 60m, giving W = 10m and Length = 20m. Area is width × length = 10m × 20m = 200 square meters.
About this riddle
Logic riddles give you a few facts and ask what must be true. List what you know, cross out what cannot be, and see what is left.
Difficulty: Easy. More like this: Logic riddles with answers or try Einstein's Logic Grid for a different kind of puzzle.
More logic riddles
Three boxes are labeled 'Apples', 'Oranges', and 'Mixed'. Every box is incorrectly labeled. You may draw only one fruit from one box without looking inside. Which box should you pick from to correctly identify the contents of all three boxes?
Three travelers need to cross a river using a boat that can hold a maximum weight of 100 kg. Traveler X weighs 100 kg, Traveler Y weighs 50 kg, and Traveler Z weighs 50 kg. How can all three cross to the other side?
A man pushes his car to a hotel and tells the hotel owner he is bankrupt. Why?
I am a tiny house made of ginger and sugar, and you eat me instead of living in me. What am I?
Three boxes contain marbles. Box 1 has 5 red marbles. Box 2 has 5 blue marbles. Box 3 has 3 red and 2 blue marbles. All boxes have labels, but all labels are swapped and incorrect. You blindly draw one marble from the box labeled 'Red and Blue'. What color is it, and which box is it actually?
A train leaves Station A heading East at 60 mph. At the same time, another train leaves Station B heading West at 40 mph on the same track. The stations are 200 miles apart. How far apart will the two trains be exactly one hour before they collide?

