how many minutes there are in 1/10 hour. Then calculate how many minutes are equal to 5x 1/10 hour

1/10 hour is equal to 6 minutes (1 hour = 60 minutes, so 1/10 hour = 60/10 = 6 minutes).

Therefore, 5 x 1/10 hour is equal to 5 x 6 = 30 minutes.