Page 8 - Curiosity August 2020
P. 8
MATHEMATICAL PUZZLES
Rintu Nath
Puzzle 1
Three identical boxes are filled with equal number of balls, one has red, one has green and the third has red and green mixed. However, stickers on the boxes are wrongly placed. Please note that all the three stickers are wrongly placed. You can take out only one ball from any of the three boxes to check the colour and re-arrange all the stickers correctly. How will you do it?
Puzzle 2
Two straight lines AB and CD are 6 cm and 4 cm long and are separated by some distance. If we draw a line connecting A with D and C with B, they intersect at a point E. Draw a perpendicular line EF on BD. Can you calculate the length of EF without knowing separation between AB and CD?
A
Red
Green
C BFD
In the next issue we will explore some mathematical paradox. Solution on page 10 Dr Rintu Nath is Scientist ‘F’ at Vigyan Prasar. Email: rnath@vigyanprasar.gov.in
E
Red and Green
8
August 2020
