Question

At the Silvergrove Zoo's bug exhibit, Rhianna watches a millipede crawl for 1/2 of a minute, stay still for a while, and then crawl for 1/4 of a minute more. How much total time did Rhianna spend watching the millipede crawl?

Answer 1

Rihanna watched the millipede crawl for 45 seconds. It is unknown how long the millipede was still.

We know that a minute is 60 seconds.

1/2 of 60 seconds is 30 seconds

Then add 1/4 of a minute which is 15 seconds

30 + 15 = 45

45 seconds