Maths, Addmaths and Statistics: Post your doubts here!

[Layla..]

Nov 2007 P2 Q.6

6ai) 6
6aii) The area of the large circle would be pi x 15^2
6aiii) it would be area of large circle - area of all other circles
Then the answer would be divided by 6.
6bi) It is an equilateral triangle so angle would be 180/3 = 60
6bii) perimeter of one small cirlce + perimeter of 60 degrees of a small circle (60/360 x 2 x pi x 5) + perimeter of 60 degrees of the bigger circle (60/360 x 2 x pi x 15)

 

[Layla..]

have you solved it or u r just challanging him?

It would suck if she was just challenging him

 

[***amd***]

6ai) 6
6aii) The area of the large circle would be pi x 15^2
6aiii) it would be area of large circle - area of all other circles
Then the answer would be divided by 6.
6bi) It is an equilateral triangle so angle would be 180/3 = 60
6bii) perimeter of one small cirlce + perimeter of 60 degrees of a small circle (60/360 x 2 x pi x 5) + perimeter of 60 degrees of the bigger circle (60/360 x 2 x pi x 15)

its not an equilateral triangle

 

[Awesome12]

have you solved it or u r just challanging him?

have you solved it or u r just challanging him?

You reply here?

 

[Layla..]

its not an equilateral triangle

It is.

 

[Ram97]

have you solved it or u r just challanging him?

have you solved it or u r just challanging him?

Koi muskil qs. tha nahin to socha ye hi challenge karun but he failed

 

[Layla..]

its not an equilateral triangle

Equilateral triangle = lengths of all 3 sides are same.
The triangle AOB is connected through radii of the circles. The circles have all the same radius making it equilateral

 

[***amd***]

I Suck at Equations mostly like this :

1. A person travel 6km/h on the way office and gets back at 4km/h! Total Journey is 45 Minutes...... Calculate distance
2. A number is 5 times 2nd number. If 8 is added to both, the 1st number would still be 3times second! What are the numbers?
3. Ali and Zain Paint a house in 12 days, zain and Shaz do it in 15 days while Ali and Shaz take 20 days! How long it will take if all 3 paint together?

Thanks in Advance!

Q1
let the distance to office be 's'
time takes to go = t (speed = 6) (distance = s)
time taken when coming back = 45 - t (speed = 4) (distance = s)

by using the formula distance = speed * time
4 (45-t) = 6 t
solve the eq and find out the value of t, then put it in the eq "6 t = s" and u'll get the value of s

Q2
one number = x
second number = y

"A number is 5 times 2nd number" ------> y = 5x
"If 8 is added to both, the 1st number would still be 3times second" -------> y+8 = 3(x+8)
solve the eq.

Q3
I've done a lot of this typa Qs, cant recall the solution right now. wait.

 

[***amd***]

It is.

no, it isnt.

Equilateral triangle = lengths of all 3 sides are same.
The triangle AOB is connected through radii of the circles. The circles have all the same radius making it equilateral

the base is not connected through radii of circles.

 

[Layla..]

no, it isnt.

the base is not connected through radii of circles.

I said triangle AOB, thus we assume that it is connected through radii of circles to formulate the answer

 

[***amd***]

Equilateral triangle = lengths of all 3 sides are same.
The triangle AOB is connected through radii of the circles. The circles have all the same radius making it equilateral

oh .-. i m sorry.
u r right there .-.

 

[Layla..]

oh .-. i m sorry.
u r right there .-.

^_^

 

[sameersuleman]

Nov 2007 P2 Q.6

Man I just saw it was busy practicing Eng but still...
1. 6
2. pi x 15 x 15
3.(225[pi] -7[25pi]) / 6
4.60
5.(1/6)x 2pi5 + (1/6) x 2pi15 + 2pi5

 

[Asad.Babur]

Q1
let the distance to office be 's'
time takes to go = t (speed = 6) (distance = s)
time taken when coming back = 45 - t (speed = 4) (distance = s)

by using the formula distance = speed * time
4 (45-t) = 6 t
solve the eq and find out the value of t, then put it in the eq "6 t = s" and u'll get the value of s

Q2
one number = x
second number = y

"A number is 5 times 2nd number" ------> y = 5x
"If 8 is added to both, the 1st number would still be 3times second" -------> y+8 = 3(x+8)
solve the eq.

Q3
I've done a lot of this typa Qs, cant recall the solution right now. wait.

Q1:

4 (45-t) = 6t
180-4t=6t
180-4t+4t=6t+4t
180=10t
t=18
S=18minutes x
s= 1.8
Right? ***amd*** @

 

[***amd***]

Q1:

4 (45-t) = 6t
180-4t=6t
180-4t+4t=6t+4t
180=10t
t=18
S=18minutes x
s= 1.8
Right? ***amd*** @

no, if t = 18
according to distance = speed * time
s = 6 * 18 = 108

 

[Asad.Babur]

N

no, if t = 18
according to distance = speed * time
s = 6 * 18 = 108

NOPE! See

s = 6 * 18 / 60 = 1.8

 

[***amd***]

N

NOPE! See

s = 6 * 18 / 60 = 1.8

oh .-. i didnt realize that 45 *minutes*

 

[Asad.Babur]

NP! How was your other papers amd?

Espacially Pak.Stud?

 

[Asad.Babur]

***amd***, follow me or remove the EXTRAORDINARY PRIVACY so I can access you!

 

[***amd***]

NP! How was your other papers amd?

Espacially Pak.Stud?

pak st was good alhamdulillah, rest of the subjects were like a mixture of good, bad, v good.