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Question
How many different Arithmetic Progressions can you form with atleast three terms with first term 2 and last term 999? 
Options:
A .  1
B .  3
C .  5
D .  6
E .  None of these
Answer: Option A
:
A
Option e
The number of AP’s= (Number offactors of 997 - 1), which is prime.
Hence only one AP’s of998 terms can be formed.
Answer is option a

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