@albiesriram said:one final one before start chasing the dream..
You select 2 from nos between x1 and x19, and 2 from those between x21 and x50.
Along with x20 :mg:
(19c2 X 30c2)/50c5
Ans: (b)
@jain4444 said:Consider all three-digit numbers that are greater than the sum of the squares of their digits by exactly 543. What are the last three digits of the sum of these numbers?
2,2,3,7,25,121,?
Solve the series....
@saurabhlumarrai said:2,2,3,7,25,121,? Solve the series....
721
it follows n!+1 series where n=0,1,2,3,...
it follows n!+1 series where n=0,1,2,3,...
@rnishant231 said:601 ?
OA:721
it follows the pattern of n!+1 series where n=0,1,2,3,...
@Joey_Sharma said:721
it follows n!+1 series where n=0,1,2,3,...
One is wrong in following series.Select wrong one
86.484 240 120 57 26.5 11.25 3.625
3 5 13 43 176 891 5353
6 7 16 41 90 154 292
5 7 16 57 244 1245 7506
4 2.5 3.5 6.5 15.5 41.25 126.75
Please give proper explanation for answers
@gnehagarg said:One is wrong in following series.Select wrong one86.484 240 120 57 26.5 11.25 3.625 3 5 13 43 176 891 5353 6 7 16 41 90 154 292 5 7 16 57 244 1245 7506 4 2.5 3.5 6.5 15.5 41.25 126.75 Please give proper explanation for answers
154 is wrong in the bold series...it follows 6+(odd num starting from 1)^2...
checking other series too
checking other series too
@gnehagarg said:One is wrong in following series.Select wrong one86.484 240 120 57 26.5 11.25 3.625
what is this? 86.484?? otherwise answer would be 120 n+1 th number is n/2 - 2
@gnehagarg said:One is wrong in following series.Select wrong one86.484 240 120 57 26.5 11.25 3.625 3 5 13 43 176 891 5353
176 all the others are prime numbers 
@albiesriram said:what is this? 86.484?? otherwise answer would be 120 n+1 th number is n/2 - 2
Sorry,I have taken from some source.There is written like that.You try to figure out possible ways to solve it
@Joey_Sharma said:154 is wrong in the bold series...it follows 6+(odd num starting from 1)^2... checking other series too
correct.
Can you make it(.it follows 6+(odd num starting from 1)^2..)clear?
Can you make it(.it follows 6+(odd num starting from 1)^2..)clear?
@gnehagarg said:
Sorry,I have taken from some source.There is written like that.You try to figure out possible ways to solve it
86.484 is simply not possible see. if that is 484 series is complete. according to the rule n+1 th number = n/2 + 2
86 might be the question number.. please check your source once again...
please check your source once again...@albiesriram said:86.484 is simply not possible see. if that is 484 series is complete. according to the rule n+1 th number = n/2 + 286 might be the question number.. please check your source once again...
@albiesriram said:86.484 is simply not possible see. if that is 484 series is complete. according to the rule n+1 th number = n/2 + 286 might be the question number.. please check your source once again...
Sure.It seems like that.It is not very much clear in document.Leave this question.Your 176 is correct
@gnehagarg said:correct.Can you make it(.it follows 6+(odd num starting from 1)^2..)clear?
sorry! my bad..
first term=6
second term=first term+(1)^2
third term=second term+(3)^2
fourth term=third term+(5)^2 and so on...
so, in place of 154, it should have been 90+(9)^2=171
first term=6
second term=first term+(1)^2
third term=second term+(3)^2
fourth term=third term+(5)^2 and so on...
so, in place of 154, it should have been 90+(9)^2=171
@gnehagarg said:One is wrong in following series.Select wrong one86.484 240 120 57 26.5 11.25 3.625 3 5 13 43 176 891 5353 6 7 16 41 90 154 292 5 7 16 57 244 1245 7506 4 2.5 3.5 6.5 15.5 41.25 126.75 Please give proper explanation for answers
7 is incorrect here...
the pattern followed here is
second term=(first term+1)+(1^2)
third term=(second term+2)+(2^2)
fourth term=(third term+3)+(3^2)
fifth term=(fourth term+4)+(4^2) and so on...
therefore, 7 should be replace by 5+1+1^2= 6
the pattern followed here is
second term=(first term+1)+(1^2)
third term=(second term+2)+(2^2)
fourth term=(third term+3)+(3^2)
fifth term=(fourth term+4)+(4^2) and so on...
therefore, 7 should be replace by 5+1+1^2= 6
@gnehagarg said:One is wrong in following series.Select wrong one
3 5 13 43 176 891 5353
176 should be 177
X1 + 2 , X2 + 3 , X3 + 4 and so on
@gnehagarg said:One is wrong in following series.Select wrong one484 240 120 57 26.5 11.25 3.625
120 should be 118
successively /2 - 2
@gnehagarg said:One is wrong in following series.Select wrong one
6 7 16 41 90 154 292
154 should be 171
successive differences - 1,9,25...