derek123
there are three terms of arithmetic sequence
a1=decrease by 5
a2=decrease by 1
a3=twice the original term
find the a3..???



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Poleng_InLove
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LoL Derek ! XD

hartnn
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is the common difference also given ?

derek123
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nope

derek123
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its 11

Poleng_InLove
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Given yung Common Difference ! 11 :P

hartnn
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common difference = A2A1 = A3A2 = 11

derek123
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the common difference is 11, sorry. xD

agent0smith
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This is written confusingly...
a1=decrease by 5
a2=decrease by 1
a3=twice the original term
decrease what by 5??

hartnn
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A3A2 = 11
2n  (n1) =11
can you find 'n' from here ??

derek123
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the first term is decreased by5

hartnn
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true! wording are really confusing and question is really weird!

agent0smith
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The first term is decreased by 5 to make what... ? the second term? itself? It doesn't make a lot of sense.

derek123
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yup it really doesn't


derek123
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yup it really doesn't make any sense

agent0smith
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That one makes a lot more sense. Lets use that question.

hartnn
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unfortunately no... thatsweird too...
A2A1 is not 11 actually....

derek123
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hahahaha. xD that's my classmate. xD we have the same question

hartnn
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lol .ok :)

Poleng_InLove
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Yes !

hartnn
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and is ploeng in love with derek ?? O.o

derek123
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hahaha. xD NO!!!!!!!!!!!!!!!

Poleng_InLove
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nope :))

hartnn
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okk. just wondering...

agent0smith
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The other question seems broken too...

Poleng_InLove
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Yah ! I think so .

hartnn
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thats what i said...

derek123
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2nn1=11
n=12
substitute it gave me 7,11 and 24

derek123
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doesn't match with the common difference

hartnn
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ok...i guess, 11 as common difference(d) should naot have been given.
in that case d = A2  A1 = 4
then A3A2 = 4
and find 'n'.

hartnn
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n=3 will give u a3 = 2n = 2*3 =6