Tag: math & puzzles

Quizzes (226) Questions (4539)

Questions Related to math & puzzles

Multiple choice general knowledge math & puzzles

Two trains, 200 km apart, are moving toward each other at the speed of 50 km/hour each. A fly takes off from one train flying straight toward the other at the speed of 75 km/hour. Having reached the other train, the fly bounces off it and flies back to the first train. The fly repeats the trip until the trains collide and the bug is squashed.What distance has the fly traveled until its death?

  1. 160km

  2. 170km

  3. 150km

  4. 120km
Reveal answer Fill a bubble to check yourself
C Correct answer
Full explanation
Multiple choice general knowledge math & puzzles

At noon the hour, minute, and second hands coincide. In about one hour and five minutes the minute and hour hands will coincide again. What is the exact time (to the millisecond) when this occurs, and what angle will they form with the second hand?(Assume that the clock hands move continuously.)

  1. 1:05:27,273 & 131 degrees.

  2. 1:08:27,286 & 135 degrees.

  3. 1:02:23,595 & 128 degrees.

  4. 1:00:20,235 & 130 degrees.
Reveal answer Fill a bubble to check yourself
A Correct answer
Full explanation