Question

Lola needs to sign 96 invitations. Using a stopwatch that measures time to tenths of a second, it takes Lola 5.3 seconds to sign her full name. Going by the accuracy of the stopwatch, using this as the accurate determination,how long will Lola be able to finish signing all the invitations? A. 3.3 minutes B. 3.3125 minutes C. 8.48 minutes D. 8.5 minutes

Answer 1

Answer: Option 'C' is correct.

Explanation:

Since we have given that

Total number of invitations = 96

Time taken to sign her full name = 5.3 seconds

Total time she needed to sign in 96 invitations is given by

`96* 5.3\\\\=508.8\ seconds`

And we know that

`1\ minute=60\ seconds\\\\508.8\ seconds=(508.8)/(60)=8.48\ minutes`

So, Lola will be able to finish signing all the invitations after 8.84 minutes.

Hence, Option 'C' is correct.