Timing Puzzles

Timing Puzzles

Timing Puzzle 1
Having 2 sand-glasses: one 7-minute and the second one 4-minute. How can you time correctly 9 minutes ?

Sand Glass

Timing Puzzle 2
A teacher of mathematics used an unconventional method to measure a 15-minute time limit for a test. He just used 7 and 11-minutehourglasses. During the whole time he turned sandglasses only 3 times (turning both hourglasses at once count as one flip).

Explain how the teacher measured 15 minutes.

Leave your answers below

  1. saptarshi chaudhuri
  2. saptarshi chaudhuri
  3. nishi
  4. nishi
    • uday
  5. ramani
  6. nidhish
  7. knid
    • admin
  8. admin
    • gurbir
  9. Mohit

Leave a Reply

Your email address will not be published. Required fields are marked *