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hi guys please tell me the solution for banking maths.. it's very tough for me.. so please tell me easy way to prepare for ibps exams..

Number Series

13  25  61  121  205  ?

a) 323

b) 326

c) 324

d) 313

Can anyone please tell me as to how they meet at the centroid since all the vertices are moving towards each other as described?? 

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A man saves rs 200 at the end of each year and lends the money at 5%compound interest .How much will it become at the end of 3yrs?

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please explain this question.

train covers distance frm jaipur to ajmer at speed of 40 kmph at same time and 2 train from ajmer to jaipur at speed of 50 kmph at same timr.if distance between jaipur and ajmer is 450 km at what distance from jaipur do two trains cross each other

a train covers distance frm jaipur to ajmer at speed of 40 kmph at same time and 2 train from ajmer to jaipur at speed of 50 kmph at same timr.if distance between jaipur and ajmer is 450 km at what distance from jaipur do two trains cross each other

just to verify whether the below method is a fluke or correct in approach:

even factors of 135000 and 108000 would not vary for powers of 2 and 3 as in both the cases for 135000, 2 and 3 powers are less or equal to that of for 108000. only 5 will make the difference. For 135000 power of 5 can take values 0,1,2,3 and 4 but for 108000 power of 5 can take values 0,1 and 2 only.

So total number of factors = 3*4*2 = 24

3 => 1,2,3 powers of 2

4=> 0,1,2,3 powers of 3

2 => 3,4 powers of 5