I hav one 4m series problems...
If d sum of d even no.s btwn 1 & k is 79*80, where k is an odd no., den k=?
yep! thats right.Another method is:
The number of terms in this set would be: n=(k-1)/2 (as k is odd)
Last term: k-1 ( and 1st term = 2)
Average would be first term+last term/2 = (2+k-1)/2=(k+1)/2
Also average: sum/no. of terms
=>79*80/((k-1)/2)
=>158*80/(k-1)
=>(k+1)/2=158*80/(k-1)
=>(k-1)(k+1)=158*160
=> k=159
Aaa... This one
The average of temperatures at noontime from Monday to Friday is 50; the lowest one is 45, wht z d possible maximum range of the temperatures?
Assuming no operator preference, such as the case on a calculator, where operators are considered from left to right, then one answer is,
6 - 6 / 6 + 6 * 6 = 36.
With all computer languages this will not be true because the * and / operators have a preference over + and -. For such situations, the above will have to be written as follows,
(6 - 6) / 6 + 6 * 6 = 36.
Today I saw the Nat Geo "Live Curious" commercial, and it reminded me of trigonometry problems we used to have; "if this, prove this". I thought you guys would be interested
If you are, you breath.
If you breath, you talk.
If you talk, you ask.
If you ask, you think.
If you think, you search.
If you search, you experience.
If you experience, you learn.
If you learn, you grow.
If you grow, you wish.
If you wish, you find.
If you find, you doubt.
If you doubt, you question.
If you question, you understand.
If you understand, you know.
If you know, you want to know more...
And if you want to know more, you are alive...
Therefore: If you are= you are alive
cooooool lol!
http://www.spotformat.com/tv-commercial/national-geographic-channel-tv-commercial---if--live-curious
Time for a new quiz?
OK. This is a TV game show and you are the contestant. The game has 16 closed boxes, hidden inside one of them is $10,000 and all the others are empty inside.
You are asked three questions. Each question is a true-or-false question. For each question you answer correctly, you get $500 and half the remaining boxes is removed. All removed boxes are empty.
Now:
1. What is the most money you can win in this game?
2. What is the probability that you will win that amount?
3. What is the probability that you will any money?
4. What is the least number of boxes that may remain?