If x = 1/9, then what is the value of 1 + 2x + 3x2 + 12x3 + 33x4 + 102x5 … up to infinite terms?

@Bigshu @catnov2013 @satishgsk @vinishayanna @nair101 @sanjana_saive

@iamkrish

There are 100 doors which are in closed state initially. The first person changes the state of all doors ( ex:open to close or close to open). The second person changes the state of 2nd,4th,6th,8th...and so on(multiples of 2). The third person changes the state of 3rd,6th,7th...and so on (multiples of 3).. Like wise 100 people changes the previous state of the doors. So, How many doors are opened after completing the whole process???

0 answers 1) 13

0 answers 2) 10

0 answers 3) 9

0 answers 4) 12

0 answers 5) None of the above

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I think the ans should be more then 25.

All the prime number doors will be changed only one. and there will be some more which have odd no of factors exculding 1.

6 8 10 14 18 20 22 24 26 30 32 34 40 44.. so on we can calculate....

Whats the ans??

@vinishayanna

A parking lot contains 80 vehicles each vehicle is either a car or bus and each vehicle is either red or green in color. 35 vehicles are red and 60 are car. if there are 9 green trucks, how many red cars are there??

1) 11

2) 36

3) 24

4) 35 Skip

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@Bigshu @iamkrish @catnov2013 @nair101 @satishgsk@sanjana_saive

@shattereddream said:

@SandeepIT Start a new thread then we will decide thereafter how to proceed

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@neptuneriki said:

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