Math Question help!!!
-
still wrong. This qn the trick lies in "remainder of something". Therefore, by merely multiply 4 to 7777, u interpreting the qn as " she spend 1/4 of her money on toys" which is wrong.Originally posted by forum_dude:my answer divided by 12 would be $2592
The qn wants:" 1/4 of the remainder of money"
U need to be strong in fraction to understand what i meant. -
i am doing it as remainder of 1/4 of remainder of money what.Originally posted by Uncertain:still wrong. This qn the trick lies in "remainder of something". Therefore, by merely multiply 4 to 7777, u interpreting the qn as " she spend 1/4 of her money on toys" which is wrong.
The qn wants:" 1/4 of the remainder of money"
U need to be strong in fraction to understand what i meant.
i even fuc king draw a model in which u will get 12 bars where 6 bars belong to clothes, 2 bars belong to games and 1 bar belong to toys what.
so 12-6-2-1 will get u 3 bars where 3 bars would be 7777.
correct me if i am wrong -
cant solve bcos they question never describe properly . they never say its from last year till the next year . so u cant use 31108 divided by 12
"Assume last year she had no money, and kept it up to now."
When is the now????? 3 months from last year ? 4 months and 21 days from last year ? -
12 bars are wrong imo.Originally posted by forum_dude:i am doing it as remainder of 1/4 of remainder of money what.
i even fuc king draw a model in which u will get 12 bars where 6 bars belong to clothes, 2 bars belong to games and 1 bar belong to toys what.
so 12-6-2-1 will get u 3 bars where 3 bars would be 7777.
correct me if i am wrong
There should be a minimum of 24 bars.
as from my working: 1 - 1/2 - 1/6 - 1/24
this got to show, the minimum value of denominator is 24 and not 12 -
This one means what ah?Originally posted by jiaweiwei87:Every month, a girl gets allowance. Assume last year she had no money, and kept it up to now. -
zzz never see my post??? this question cant be solved. they never state the timeline of how many freaking months she saved up
-
means she kept the full sum of monthly allowance last year.Originally posted by eagle:This one means what ah? -
1 - 1/2 - 1/3(1/2) - 1/4(1/3)(1/2) = 1 - 1/2 - 1/6 - 1/24 = 7/24
7/24 units = 7777
1 whole = 24/7 x 7777 = $26664
1 year = 26664
1 month = 1/12 x 26664 = $2222 (ans)Every month, a girl gets allowance. Assume last year she had no money, and kept it up to now. Then she spends 1/2 of her money on clothes, then 1/3 of the remaining money on games, and then 1/4 of the remaining money on toys. After she bought all of that, she had $7777 left. Assuming she only gets money by allowance, how much money does she earn every month?
The first line in the question already make me blur. The question might have been scribbled on paper mentally after the exam, which might not be exactly the same as appeared in the exam paper.
As the question is ambiguous, some will interpret like this:
After spending ½ of 1, remains ½. Then Spends 1/3 of ½, remain 2/3 of ½, then spends ¼ (2/3of ½) and not 1/4(1/3of 1/2), you’ll get final answer 2953. -
Originally posted by googoomuck:
U make it sounds so complicated. In fact, the question is so straightforward.
1 - 1/2 - 1/3(1/2) - 1/4(1/3)(1/2) = 1 - 1/2 - 1/6 - 1/24 = 7/24
7/24 units = 7777
1 whole = 24/7 x 7777 = $26664
1 year = 26664
1 month = 1/12 x 26664 = $2222 (ans)
The first line in the question already make me blur. The question might have been scribbled on paper mentally after the exam, which might not be exactly the same as appeared in the exam paper.
As the question is ambiguous, some will interpret like this:
After spending ½ of 1, remains ½. Then Spends 1/3 of ½, [b]remain 2/3 of ½, then spends ¼ (2/3of ½) and not 1/4(1/3of 1/2), you’ll get final answer 2953.
[/b]
The only flaw i can find in this qn is the timeframe that is not stated clearly. However, in reality, we are faced with this kind of ambiguity. Therefore, assumptions ARE NEEDED here to solve the problem.
In this case, my assumption is that the girl get allowance for the full 12 months last year and only spend everything at jan of next year. To me, the likelihood of this assumption is the highest as compared to the other assumptions that u can make. -
read my post and stop dividing by 12 . How you know is one complete year????
-
Assuming only. The question is not clear.Originally posted by Q('_'Q):read my post and stop dividing by 12 . How you know is one complete year????
-
Means one word missing la.... Assume she had spent no money?Originally posted by Uncertain:means she kept the full sum of monthly allowance last year. -
She spent half at first , so the remainder is 1/2 .
She spent 1/3 of the remainder (1/2) , so the remainder is 2/3 x 1/2
She spent 1/4 of the remainder (2/3 x 1/2 ) , so the remainder is 3/4 x 2/3 x 1/2
Which is 1/4 !!!!!!
So , 1/4 of her money is 7777 , then what she gets is 7777 x 4
Which is 31108 !!!!!!
THen u can divide the value with whatever months u can think of !!!!! -
You should post the answer out for people to see next time.Originally posted by jiaweiwei87:sorry the answer is Wrong
And is the question the same word for word? -
If the earned money every month is x.Originally posted by jiaweiwei87:Every month, a girl gets allowance. Assume last year she had no money, and kept it up to now. Then she spends 1/2 of her money on clothes, then 1/3 of the remaining money on games, and then 1/4 of the remaining money on toys. After she bought all of that, she had $7777 left. Assuming she only gets money by allowance, how much money does she earn every month?
Must give the working and the answer!!
x/2+x/6+x/24=x-7777
12x/24+4x/24+x/24=x-7777
7777=24x-17x
7777=7x
1111=X -
wtf is wrong with u? ts already say that the answer is correct.Originally posted by Q('_'Q):She spent half at first , so the remainder is 1/2 .
She spent 1/3 of the remainder (1/2) , so the remainder is 2/3 x 1/2
She spent 1/4 of the remainder (2/3 x 1/2 ) , so the remainder is 3/4 x 2/3 x 1/2
Which is 1/4 !!!!!!
So , 1/4 of her money is 7777 , then what she gets is 7777 x 4
Which is 31108 !!!!!!
THen u can divide the value with whatever months u can think of !!!!! -
ya u are right... i realise where i gone wrong haha.... even TS got wrong ans still say i right lolOriginally posted by Q('_'Q):She spent half at first , so the remainder is 1/2 .
She spent 1/3 of the remainder (1/2) , so the remainder is 2/3 x 1/2
She spent 1/4 of the remainder (2/3 x 1/2 ) , so the remainder is 3/4 x 2/3 x 1/2
Which is 1/4 !!!!!!
So , 1/4 of her money is 7777 , then what she gets is 7777 x 4
Which is 31108 !!!!!!
THen u can divide the value with whatever months u can think of !!!!!
ia 1/4(2/3)(1/2) and not 1/4(1/3)(1/2) -
TS ans is wrong, he/she is correct.Originally posted by popmynutsy:wtf is wrong with u? ts already say that the answer is correct.
-
so my answer is correct la ??
-
Originally posted by Uncertain:
The red color 1 should be 2.
[b]
lol primary school math... TS primary school one
First, we need to know the fraction of $$$ left
1 - 1/2 - 1/3(1/2) - 1/4(1/3)(1/2) =
Say bye bye to your whole solution. -
same answer also draw the bar. didnt know u so intelligent, clever on bed and clever on books.Originally posted by forum_dude:i am doing it as remainder of 1/4 of remainder of money what.
i even fuc king draw a model in which u will get 12 bars where 6 bars belong to clothes, 2 bars belong to games and 1 bar belong to toys what.
so 12-6-2-1 will get u 3 bars where 3 bars would be 7777.
correct me if i am wrong -
ya should be... my mistakeOriginally posted by forum_dude:so my answer is correct la ?? -
Originally posted by HyuugaNeji:The red color 1 should be 2.
Say bye bye to your whole solution. -
i dunno y u and gogomuck keep saying me wrongOriginally posted by Uncertain:ya should be... my mistake
working shld be correct but the ultimate answer i still dunno coz question seriously not clear -
u can try me on bed tooOriginally posted by popmynutsy:same answer also draw the bar. didnt know u so intelligent, clever on bed and clever on books.