Hey guys check this out this is the toughest problem to solve..........
By nsj947
@nsj947 (284)
India
May 6, 2010 11:30am CST
3 friends went to hotel and ordered coke, their bill was $75,so each one paid $25 to the waiter.When the waiter took $75 to the cashier,the cashier returned $5 keeping the $70,the waiter took $2 from those $5 and distributed the $3 to the friends( so that one person gets $1). Now in this way each person had paid $25 and received $1 so cost per person is $24.Now 24 multiplied by 3 is 72 plus 2(because the waiter took $2) will be $74, but the bill was $75, so where has those $1 gone????????
6 responses
@sleepylittlerose (1648)
• United States
6 May 10
This has to do with order of operations. This is the one math problem that algebra teachers love to see if their children have learned the basics of multiplication and division first then addition and subtraction, unless parentesis are used to change order.
@sleepylittlerose (1648)
• United States
6 May 10
The order of mathematical operation. I learned this in the 6th grade. Here is a simplified explination
1+1*2 = ?
if the problem completed correctly you should get 3, as you have to multiply first.
or end up with 1+2=3
If the problem is done out of order then you come up with 4, or
2+2=4.
@sleepylittlerose (1648)
• United States
6 May 10
the last equation should of been 2*2=4, but same difference.
@eysiojo23 (141)
• Philippines
8 May 10
What a very critical thinking you got there rudyro. How did you manage to think that equation? nice.
@drkraven (521)
• Romania
6 May 10
the fact that they did get 1 dollar back each of them has nothing to do with the BILL. You state the the bill was 75$. The fact that after the bill was written the waiter got 5 dollars and kept 2 and gave 1 to each of the friend has nothing to do with the value of the bill:) The dollar is not gone. The bill was 75$ but for reasons you do not describe the cashier prefered to keep only 70$ even if the bill was 75$ :)
@eysiojo23 (141)
• Philippines
8 May 10
What a very tricky question you got there. And a very hard too. Well, I really don't know how to solve that problem but the man on my top is very good. Hope to here more from you.
