Maths, Addmaths and Statistics: Post your doubts here!

[***amd***]

View attachment 43658
Isey kya karna hai?

0.005 = 5/(10^3)
undrt 0.005 = 1.7/10 = 0.17
am i right?

 

[Dark Destination]

0.005 = 5/(10^3)
undrt 0.005 = 1.7/10 = 0.17
am i right?

Yes, Maths master

 

[Dark Destination]

I'm going to start paper 1's tonight. Which year should i start from?

 

[Awesome12]

0.005 = 5/(10^3)
undrt 0.005 = 1.7/10 = 0.17
am i right?

What did you do after the first line?

 

[Awesome12]

I'm going to start paper 1's tonight. Which year should i start from?

 

[***amd***]

What did you do after the first line?

take underroot of the fraction "5/(10^3)"

 

[exploded diper]

Kevin takes T time with 100 speed.
Jane takes ___ time with 110 speed.

T is inversely proportional to speed.

So T = k/speed.

Put 100 and T in, and you get k=100T

Then, put 110 as speed, and you get the time for Jane, 100T/110

Kevin's time = T

Kevin's speed = d/T

Jane walks 10 % faster than Kevin (her speed is 10 % more than Kevin)

Jane's speed = (d/T) * (110/100)


Applying the speed = distance/ time formula


(d/T) * (110/100) = d / x

Find x

thx

 

[funky brat]

0.005 = 5/(10^3)
undrt 0.005 = 1.7/10 = 0.17
am i right?

Yeah but when we divide s by 1000 why don't we divide 1.7 by 1000 as well?

 

[funky brat]

Genius
nd u say u dont knw anything

He knows everything, EVERYTHING.

 

[Awesome12]

take underroot of the fraction "5/(10^3)"

But you don't have a calculator, and it takes time doing it mentally

 

[exploded diper]

Yeah but when we divide s by 1000 why don't we divide 1.7 by 1000 as well?

take the cuberroot of thousand which is 10....

 

[***amd***]

Yeah but when we divide s by 1000 why don't we divide 1.7 by 1000 as well?

coz when we take sqr rt or cube root or any root, of a fraction we take that for both numerator and denominator.
Numerator = 5 ---------> its 3rt = 1.7
denominator = 1000 ----> its 3rt = 10

 

[exploded diper]

But you don't have a calculator, and it takes time doing it mentally

no that is given in the question

 

[***amd***]

But you don't have a calculator, and it takes time doing it mentally

its simple maaaan!
3rt of 5 is givenm, and 3rt of 1000 is 10. do u need time even for this?

 

[funky brat]

coz when we take sqr rt or cube root or any root, of a fraction we take that for both numerator and denominator.
Numerator = 5 ---------> its 3rt = 1.7
denominator = 1000 ----> its 3rt = 10

I took almost 2 minutes to figure out this 3rt thing.

 

[Dark Destination]

***amd***

What does this mean? :/

--> ''OM = 1/2(OA + OB)''

These are vectors. :/ M is the midpoint of AB.

 

[***amd***]

I took almost 2 minutes to figure out this 3rt thing.

1 minute or le lena tha

***amd***

What does this mean? :/

--> ''OM = 1/2(OA + OB)''

These are vectors. :/ M is the midpoint of AB.

are u sure its OA + OB, not "OA - OB"?

 

[funky brat]

View attachment 43659
Part b?

View attachment 43660
Part b?

This as well.
***amd***

 

[Dark Destination]

1 minute or le lena tha

are u sure its OA + OB, not "OA - OB"?

Yes. Its OA + OB.

 

[funky brat]

1 minute or le lena tha

-.-