Question

A CUCKOO CLOCK HAS BIRDS THAT POP OUT OF THEIR NESTS EVERY 6 MINUTES AND DANCERS THAT POP OUT EVERY 15 MINUTES THE BIRDS AND DANCERS HAVE JUST POPPED OUT AT THE SAME TIME WHEN WILL THIS HAPPEN AGAIN IN THE NEXT 60 MINUTES? sorry caps lock and i dont feel to write again

Answer 1

After 30 minutes

Explanation:

Birds pop out at:

6, 12, 18, 24, 30, 36, 42, 49, 54, 60 mins respectively [6 mins interval]

Also

Dancers pop out at:

15, 30, 45, 60 mins respectively [15 mins interval]

Since at birds and dancers have popped out now (let it be TIME 0), then what is the next number [in the number sequences above] where 2 of them are same??

Looking at the list, it is 30. Hence, It will happen again after 30 minutes.