SOLUTION: URGENT HELP!!!!!! i am having trouble solving this problem help If a clock were turned into a twenty four hour clock so that it struck 24 times at midnight, how many t

Algebra.Com
Question 689037: URGENT HELP!!!!!!
i am having trouble solving this problem help
If a clock were turned into a twenty four hour clock so that it struck 24 times at midnight, how many times would it strike in the course of a 24 hour day?
Answer by Edwin McCravy(20054)   (Show Source): You can put this solution on YOUR website!
I'll assume that the day starts at the beginning of the 1st
stroke of 24 at midnight, and is over just before it starts 
to strike 24 the second time.  So I will only count the strike
of 24 just once, and not count the striking of 24 at the end. 

S24 = 24+1+2+3+...20+21+22+23

We may as well move the 24 from the left end to the right end. 

S24 = 1+2+3...20+21+22+23+24

Sn = (a1 + an) 

n = 24, a1 = 1, an = a24 = 24. 

S24 = (1 + 24)

S24 = 12×25 = 300 times.

Edwin
RELATED QUESTIONS

Hi, I am having trouble with this problem: The minute hand clock is 7 cm longer than... (answered by scott8148)
I am an adult who is reviewing my high school algebra II course from many years ago. I... (answered by solver91311)
I made 3 columns for this problem and listed all the times and I am up to 120 hours and I (answered by ankor@dixie-net.com)
I have a few questions on here that I am having trouble solving, please... (answered by Alex.33)
The display on a digital clock read 6:38. What will the clock display twenty-seven digit... (answered by Edwin McCravy)
I am in Algebra 1A.(7th grade)....The problem is a face of a clock, and the question is;... (answered by Alan3354,richard1234)
I am having trouble solving this problem cube root of (9y/2x) thanks for your... (answered by longjonsilver)
I am having trouble solving the following problem. Please help. seven thirds x = two... (answered by wuwei96815)
Help! :-( I am having trouble solving this problem. It is a homework assignment due... (answered by Edwin McCravy)