Maths, Addmaths and Statistics: Post your doubts here!

[sourov97]

What went wrong?

i forgot it!

 

[Saad Mughal]

not sure!...but i could find out only one mistake in P1...so expecting lowest 75

That one mistake deprives us of WD.

 

[sourov97]

That one mistake deprives us of WD.

sorry!...but what is WD?

 

[Saad Mughal]

sorry!...but what is WD?

World Distinction, which is almost always at 100%.

 

[sourov97]

World Distinction, which is almost always at 100%.

ohhh!...but i am not sad for it!.....cause i didnt even touch the QP this whole month!...just before exams i only glanced at the formulas....i gave the exam just on my general knowledge!..it was really easy!

 

[Saad Mughal]

ohhh!...but i am not sad for it!.....cause i didnt even touch the QP this whole month!...just before exams i only glanced at the formulas....i gave the exam just on my general knowledge!..it was really easy!

I did the same but my mistake was such a miserable one. I didn't do a single paper but I was confident (I calculated the factor of 68 rather than 78).

 

[sourov97]

I did the same but my mistake was such a miserable one. I didn't do a single paper but I was confident (I calculated the factor of 68 rather than 78).

ohh!..but u r in a better place than me!...i even dont remember what mistake i did!...and the day before the exam i played soccer in the morning till noon...then came home, freshened up and watched 2 movies..then played a Fifa 13 for about an hour!...and again watched another movie!...i just started reading about 2 hours before exams!

 

[asma tareen]

I did the same but my mistake was such a miserable one. I didn't do a single paper but I was confident (I calculated the factor of 68 rather than 78).

wht mistake

 

[shahzadi afia]

sourov97 and saad mughal....u guys are too genius...i studied 2 whole nights but still will loose more than 6 marks!

 

[sourov97]

sourov97 and saad mughal....u guys are too genius...i studied 2 whole nights but still will loose more than 6 marks!

so!...what were ur mistakes!?

 

[starship]

.

 

[shahzadi afia]

so!...what were ur mistakes!?

well...i drew the d/t and s/t graph wrongly and hence got no value for when they meet!..and two other..but i dont remember them!

 

[sourov97]

.View attachment 27803

c) i) bills age now = 6 times ada was last year + 1
y = 6 (x-1) + 1....(x-1) cause now ada is x so last year he should be x-1
y = 6x - 5

 

[sourov97]

well...i drew the d/t and s/t graph wrongly and hence got no value for when they meet!..and two other..but i dont remember them!

ohhh!..i also drew the d/t graph wrongly first but then after viewing the next Q (when they meet) i understood my wrong and changed it!..and the s/t graph was sth like a T..

 

[asma tareen]

ohhh!..i also drew the d/t graph wrongly first but then after viewing the next Q (when they meet) i understood my wrong and changed it!..and the s/t graph was sth like a T..

mine wx like an x

 

[sourov97]

.View attachment 27803

c) (ii) after 19 years, ada = (x+ 19) and bill = ( y + 19).
so if bill will be 2 times as ada then ; y + 19 = 2(x + 19)....
or, y = 2x + 19

 

[sourov97]

mine wx like an x

the distance time graph was sth like X (including the both of theirs) but the speed time graph: first constant speed of 18 ms for some time(i forgot the length of time)..then stop( speed = 0) and then again with constant 20 m/s for the rest!

 

[sourov97]

mine wx like an x

or maybe i am wrong!??

 

[Saad Mughal]

wht mistake

Factor of 68 nikaal liya instead of 78. 1 mark gaya.

 

[asma tareen]

Factor of 68 nikaal liya instead of 78. 1 mark gaya.

aik mark pe itna dukh toba khair u wanted something else