Urgent help!! Maths sequence!

[Sijan92]

I am having a really tough time solving 2009 may june paper 2 question 6(b) and (c)..is there any formula for expresion in terms of n in the sequence? Please anyone explain the answers..

 

[Angraiz]

Well these type of pattern related questions have no set formula to solve. You have to observe them. If you practice enough, they will become easy, don't worry

b) These will be simple patters, e.g n + x, xn, xn + y, n square or cube. So it could be N + 3, 3N, 2N + 2.
You can easily get the pattern for x and y, z is just 2y.

c) You can see that the middle number is an even number, so for 2nd row its 2 and for 1st row its also 2. So for 102 it would be 102, and for 101 it would also be 102.

 

[Sijan92]

Thanks a lot. So i guess it all depends on my observing skill.

 

[Momina-Z]

I did that question.Hated it.Didnt get it either.Bt then took a sneak peak at the ansr lol.
I dont think it will cum thow i mean it js recently came in 2009.if it dus cum the q will b much easier since this one stunk.so dont worry

 

[hammadthepcgeek]

I did that question.Hated it.Didnt get it either.Bt then took a sneak peak at the ansr lol.
I dont think it will cum thow i mean it js recently came in 2009.if it dus cum the q will b much easier since this one stunk.so dont worry

This took me about half an hour Hope I do it in 5 mins or less in the paper.