Kirsten is given a test consisting of 15 questions?

[iAMtheEGGMAN]

im taking this online math course and it doesnt have any examples on how to do these...can someone please explain them to me?

Kirsten is given a test consisting of 15 questions. The first question is worth 5 points, and each question after the first is worth three points more than the question before it. What is the maximum score that Kirsten can obtain?


A ship's clock strikes every half hour of a 4-hour period. After the first half hour it strikes "one bell," after another half hour it strikes "two bells," and so on until it strikes "eight bells" at the end of the four hour period. It then begins a new four hour period . How many strikes of the bell occur in one day?

 

[DarinC]

1) 5+8+11+14+17+20+23+26+29+32+35+38+41+44+47 = 390 points

2) 1+2+3+4+5+6+7+8 = 36 * (24/4)=6
36*6= 216 rings of the bell

This question belongs in mathmatics.

 

[plainjane]

5
8
11
14
17
20
23
26
29
32
35
38
41
44
47
______
=380 points for 15 questions
______________________________________________


1 +2 +3 +4 +5 +6 +7 +8 =36 (= 36 bell-strikes in 4 hours)

36 x 6 = 216 (there are 6 of the 4-hour periods in 24 hours)

BUT: this 'day' STARTED with the bell ringing 8 times (the end of the last 4-hour "watch" is also the beginning of the NEW 4-hour 'watch,' correct? I believe so !!!

so:...216 + 8 =224 total bell-strikes in a 24-hour period.

--MY REASONING--
just as a regular grandfather clock that only strikes on the hour, one strike per hour of time, would strike 12 times at midnight, those 12 strikes would ALSO signal the beginning of a new day

 

[AngelaP]

for the first one i got 402 and for the second i got 48 for the second

 

[crimesionmouth]

the clocks bell is sturck 216 times a day

 

[smoothiegirl2]

the highest score would be 100 but possible points is 455/455. you would do 5+5+3=13. 3/13+3=16. 4/16+3=19.5/19+3=22.6/22+3=25.7/25+3=28.8/28+3=31.9/31+3=34.10/34+3=37.11/37+3=40.12/40+3=43.13/43+3=46.14/46+3=49.15/49+3=52 and then you add all of the totals up
The second guestion is there is 6, 4 hour periods in a day and in 4 hours the bell strikes 36 times so 36 times 6 equals 216 the answer is 216