Math Test
Feb 22, 2019 17:15:49 #
Earnest Botello wrote:
3+3=6
6x3=18
18-3=15
15+3=18
The banks would love your kind of math, you deposit $18,000 and your deposit slip reads $12,000, they will love customers like you and they will prove it to you with the math.
That math does not work for me. So 18 is the correct answer, no matter how you work it.
6x3=18
18-3=15
15+3=18
The banks would love your kind of math, you deposit $18,000 and your deposit slip reads $12,000, they will love customers like you and they will prove it to you with the math.
That math does not work for me. So 18 is the correct answer, no matter how you work it.
Pemdas..... Read up on it.....12 is the answer.
Feb 22, 2019 17:33:27 #
Dikdik
Loc: Winnipeg, Canada
Shellback wrote:
LOL - I'm having the same "discussion" with my wife and cousin - they are telling me that without parentheses, you have to follow the progression from left to right...
That's incorrect. Have your cousin check with his math teacher. It is correct only if you consider multiplication and division operations in order of occurance. Once these have been undertaken, you then do addition and subtraction operations, again in order of occurance.... all left to right.
Dik
Feb 22, 2019 17:51:25 #
Shellback wrote:
LOL - I'm having the same "discussion" with my wife and cousin - they are telling me that without parentheses, you have to follow the progression from left to right...
The only thing to do is agree to disagree and enjoy the weekend... Oh - I hear "happy hour" calling
The only thing to do is agree to disagree and enjoy the weekend... Oh - I hear "happy hour" calling
Don’t drown.
Mark.
Feb 22, 2019 17:59:56 #
Now that everyone has got OP’s problem under control, try this one.
A gentleman who recently died left the sum of £8,000 to be divided among his widow, five sons, and four daughters. He directed that every son should receive three times as much as a daughter, and that every daughter should have twice as much as their mother. What was the widow's share?”
A gentleman who recently died left the sum of £8,000 to be divided among his widow, five sons, and four daughters. He directed that every son should receive three times as much as a daughter, and that every daughter should have twice as much as their mother. What was the widow's share?”
Feb 22, 2019 19:10:15 #
If you start from left to right and punch it into a calculator, the answer is 18
Feb 22, 2019 19:23:24 #
dragonswing wrote:
If you start from left to right and punch it into a calculator, the answer is 18
Not my calculator.
It shows 12, which is correct.
Feb 22, 2019 19:23:34 #
Feb 22, 2019 19:25:02 #
jerryc41 wrote:
This type of computation drives a friend of mine crazy, and he refuses to accept the correct answer.
Photography rules, math drools.
Feb 22, 2019 19:39:12 #
Dikdik
Loc: Winnipeg, Canada
John_F wrote:
Now that everyone has got OP’s problem under control, try this one.
A gentleman who recently died left the sum of £8,000 to be divided among his widow, five sons, and four daughters. He directed that every son should receive three times as much as a daughter, and that every daughter should have twice as much as their mother. What was the widow's share?”
A gentleman who recently died left the sum of £8,000 to be divided among his widow, five sons, and four daughters. He directed that every son should receive three times as much as a daughter, and that every daughter should have twice as much as their mother. What was the widow's share?”
The widow's share was approx £205.128, and each daughter's share was approx £410.256 and each son's share was approx £1230.77. The total paid to all parties is £205.128 + 4(£410.256) + 5(£1230.77) = £205.128 + £1644.03 + £6153.85 = £8,000.
Something more challenging?
Dik
Feb 22, 2019 19:41:56 #
jimfl938
Loc: Acworth, GA
I am 80 years old and I guess the rules for math have changed since I was in school.
Feb 22, 2019 19:48:34 #
Dikdik
Loc: Winnipeg, Canada
jimfl938 wrote:
I am 80 years old and I guess the rules for math have changed since I was in school.
I'm over 70 and they haven't changed...I'm a practicing structural engineer and have been playing at it for nearly 50 years.
Dik
Feb 22, 2019 20:04:22 #
Dikdik wrote:
The widow's share was approx £205.128, and each daughter's share was approx £410.256 and each son's share was approx £1230.77. The total paid to all parties is £205.128 + 4(£410.256) + 5(£1230.77) = £205.128 + £1644.03 + £6153.85 = £8,000.
Something more challenging?
Dik
Something more challenging?
Dik
Did you use a formula for this? I got the same result by a brief trial and error approach. Started with each son getting 1250 and adjusting from there.
Feb 22, 2019 20:07:56 #
In the absence of parens, work l to r, hence answer is 18.
Feb 22, 2019 20:11:57 #
No rules, no parenthesis, no explanation. Non that I saw. Your wife is just going along, not worth the fight.
Feb 22, 2019 20:12:32 #
DeanS wrote:
In the absence of parens, work l to r, hence answer is 18.
Respectfully disagree. The order of operations takes precedence regardless. It’s 12.
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