Question

( PLEASE HELP ASAP ) A certain bell rings every 60 minutes. Another bell rings every 90 minutes. Both bells begin ringing at midnight (12:00 A.M.). How many more times will both bells ring by 1 PM?

A. 4
B. 5
C. 8
D. 12

Answer 1

Answer: C. 8

Explanation:

If you convert first bell into hours, it will ring 13 times within the thirteen hours because it rings every hour. Now convert the second bell and you get 1.5 hours. Within the given time frame it will ring 8 times and since the time frame is at 1:00PM not 1:30PM it won’t ring 9 times.

Now the question asks how many MORE times will BOTH (<— key word) bells rings in that time frame? Well it’s 8 because the second bell will rings 8 times and so will the first bell within the time frame!

Side Note: the other guy really other thought this. No clue why they subtracted the numbers.

Answer 2

Both bells will ring 4 times less by 1 PM compared to the first bell alone, so the answer is A!

Explanation:

To find out how many more times both bells will ring by 1 PM, we need to determine the number of times each bell will ring within the given time frame.

The first bell rings every 60 minutes, and there are 12 hours from midnight to 1 PM. Therefore, the first bell will ring 12 times within this time frame (since 60 minutes x 12 = 720 minutes).

The second bell rings every 90 minutes. To calculate the number of times it will ring within 12 hours, we need to convert the time to minutes. 12 hours is equal to 720 minutes.

The number of times the second bell will ring is calculated by dividing the total number of minutes (720) by the interval between rings (90).

720 minutes / 90 minutes = 8 times

So, the second bell will ring 8 times within the given time frame.

To find out how many more times both bells will ring, we need to subtract the number of times the first bell rings (12) from the number of times the second bell rings (8).

8 - 12 = -4

Therefore, both bells will ring 4 times less by 1 PM compared to the first bell alone.

You're welcome! ^^