Question

while watching TV from 7 pm to 8 pm . you count 20 commercials, each 30 second long. what nearest percent of the hour is taken by the commercials.​

Answer 1

Answer:

16.66666666666666666666666666667

Step-by-step explanation:

no of commercial=20

duration of commercial=30 seconds or ½ minute

now,

20×½=10 minutes are taken

now percentage,

10/60×100=16.6666666666666666666666666666666667

Answer 2

Given:

Time to watch TV - 7pm to 8pm = 60 mins

Total commercials = 20

Commercial duration = 30 seconds

To Find:

Nearest percent of the hour is taken by the commercials

Solution:

In 1 min = 60 sec

Therefore,

30 sec × 20

= 600 sec

Now, 600 sec -

= 600/60

= 10 min

Commercials time in minutes = 10

Commercial time as hour fraction

= 10/60

= 0.1666

Commercial time as percentage

= 0.1666 × 100

= 16.67

Answer: The commercial time to the nearest percent is 17%.