Maths, Addmaths and Statistics: Post your doubts here!

[farhan141]

3^2*12-3*2^10)/(3*2^8)
3^2*2^12/3*2^8 - 3*2^10/3*2^8
3*2^4-2^2
3*16-4
44

Thanks Bro!

 

[robinhoodmustafa]

Kindly help me in this..

 

[danial 234]

u r always welcome

Thanks Bro!

 

[passion hunter]

CPQ and ABC are similar
(4/6)^2=6/x
x= 4/9*6= 13.5

i cant believe ke mein itna asan sawal nahi kar saka....i was writng the square of 6 as 32 instead of 36..

 

[passion hunter]

Kindly help me in this..

is this paper one?

 

[robinhoodmustafa]

is this paper one?

Yes

 

[passion hunter]

Kindly help me in this..

3.1428 - 3.1416 = 0.0012....i used calculator btw...no idea how do this without calculator...

 

[danial 234]

3.1428 - 3.1416 = 0.0012....i used calculator btw...no idea how do this without calculator...

diviide 22 by 7 = 3.1428
then subtract
3.1428-3.1415= 0.0013

 

[passion hunter]

3.1428 - 3.1416 = 0.0012....i used calculator btw...no idea how do this without calculator...

or you could find out 22/7 till 4 decimal places by division and subtract pi from it

 

[passion hunter]

diviide 22 by 7 = 3.1428
then subtract
3.1428-3.1415= 0.0013

i did just that before you answered

 

[Ishrar Afrida]

No. 13 (a) please

 

[qffdhruba]

let x be ext angle
then
x + int angle=180
x+px=180
x(1+p)=180
x=180/(1+p)
b)
x=360/no of sides
180/(1+p)=360/n
n=360(1+p)/180
n=2(1+p)

Thanks...

 

[Saad Mughal]

Kindly help me in this..

This came in one of my class tests.
Use long division, when they asked for the working, just use the good ol' long division method up to 3 decimal places and round off appropriately.

 

[robinhoodmustafa]

This came in one of my class tests.
Use long division, when they asked for the working, just use the good ol' long division method up to 3 decimal places and round off appropriately.

Long Division? How

Majority will fail to attempt in this question

 

[Saad Mughal]

Long Division? How

Majority will fail to attempt in this question

I didn't. It's the ONLY method for problems like these.
Yaar wohi 5 class main nhi krty thy? Lambi lambi kahaaniyaan?
http://www.google.com.pk/imgres?img...jCiUdKsIISWhQe494HQCg&ved=0CEcQ9QEwBA&dur=565

 

[starship]

 

[Saad Mughal]

View attachment 27613

Equilateral triangle means that each angle = 60 deg.
Bearing of C from A = 75+60 =135 deg.

 

[usama321]

No. 13 (a) please

take the ratios of the volumes of the cylinder

vol of lower = pi r^2 2h
vol of upper= pi 2r^2 h

1:2
1/3 *12= 4 min

 

[robinhoodmustafa]

Equilateral triangle means that each angle = 60 deg.
Bearing of C from A = 75+60 =135 deg.

Listen! When question says. Find bearing from B to A than where do we make the north?? On Point B or A

 

[robinhoodmustafa]

I didn't. It's the ONLY method for problems like these.
Yaar wohi 5 class main nhi krty thy? Lambi lambi kahaaniyaan?
http://www.google.com.pk/imgres?img...jCiUdKsIISWhQe494HQCg&ved=0CEcQ9QEwBA&dur=565

Ok but how will we solve "Pie" sign