Qualification > Math

C1 and C2 DOUBTS HERE!!!!!

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Saladin:

--- Quote from: halosh92 on May 20, 2010, 02:18:51 pm ---Q2
thx :)

--- End quote ---







I am sure you can figure it out now.

halosh92:

--- Quote from: Engraved on May 20, 2010, 06:43:18 pm ---





I am sure you can figure it out now.

--- End quote ---

there is my doubt exactly  ;D
why did u subtract "9" from 30 ???
thx alot ;)

Saladin:

--- Quote from: halosh92 on May 20, 2010, 06:52:09 pm ---there is my doubt exactly  ;D
why did u subtract "9" from 30 ???
thx alot ;)

--- End quote ---

It is the sum of terms 10 to 30. Inclusive of the 10th term.

Thus, you have to subtract the sum of the first 9 terms to get the answer.

I hope that answers your question.

halosh92:

--- Quote from: Engraved on May 20, 2010, 06:53:54 pm ---It is the sum of terms 10 to 30. Inclusive of the 10th term.

Thus, you have to subtract the sum of the first 9 terms to get the answer.

I hope that answers your question.

--- End quote ---

so we always exclude!
thx a bunch! ;)

Blizz_rb93:
Can someone please help me with January 2010 Question 4 and Question 6

Thank you.

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