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Logical Reasoning
Number Series
70, 54, 45, 41……. What is the next number in the given series?
Read Solution (Total 30)
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- ans is 40.70-4^2=54,54-9=45,45-4=41,41-1=40
- 12 years agoHelpfull: Yes(45) No(0)
- it is very simple question of series
ans=40
70-40=16=square of 4
54-45=9=square of 3
45-41=4=square of 2
so next no will be square of 1
41-1=40
- 12 years agoHelpfull: Yes(28) No(2)
- answer is 40.
41+2^2=45
45+3^2=54
54+4^2=70
- 12 years agoHelpfull: Yes(18) No(1)
- it is very simple question of series
ans=40
70-54=16=square of 4
54-45=9=square of 3
45-41=4=square of 2
so next no will be square of 1
41-1=40 - 12 years agoHelpfull: Yes(10) No(1)
- 70, 54, 45, 41
so the next no. will be 40in the series
because 70-54=16=4^2
54-45=9=3^2
45-41=4=2^2
41-40=1=1^1
- 12 years agoHelpfull: Yes(4) No(0)
- Ans-40,
first 70-16=54 which means 4^2 then
54-45=9 which means 3^2 then
45-41=4 which means 2^2 then 2 after come 1 so
41-1=40 which means 1^1 so answer got...--->
40 - 12 years agoHelpfull: Yes(2) No(0)
- answer is 40
54 = 70 - 4^2
45 = 54 - 3^2
41 = 45 - 2^2
40 = 41 - 1^2 - 12 years agoHelpfull: Yes(0) No(0)
- 70-4^2=54
54-3^2=45
45-2^2=41
41-1^1=40 - 12 years agoHelpfull: Yes(0) No(0)
- 70-54=16=4^
54-45=9=3^
45-41=4=2^ - 9 years agoHelpfull: Yes(0) No(0)
- 40 would be....
- 9 years agoHelpfull: Yes(0) No(0)
- ans is 40 because
40+1^2=41
41+2^2=45
45+3^2=54
54+4^2=70 - 9 years agoHelpfull: Yes(0) No(0)
- 40
because difference is square of no 4,3,2 then 1 - 8 years agoHelpfull: Yes(0) No(0)
- 70-54=4^2;
54-45=3^2;
45-41=2^2;
41-40=1^2
=> ans is 1 - 8 years agoHelpfull: Yes(0) No(0)
- 40. Because consecutive square of no.starting from 4 to 1
- 7 years agoHelpfull: Yes(0) No(0)
- The answer is: 40
It seems the difference between each by the square of 4, 3 and 2 respectively (moving from left-to-right) i.e 70 and 54 has a difference of 16 which is square of 4 and so on.
Thus final result is square at 1 i.e 40. - 6 years agoHelpfull: Yes(0) No(0)
- next number is 40
70-4^2=54,
54-3^2=45,
45-2^2=41,
41-1^2=40 - 6 years agoHelpfull: Yes(0) No(0)
- 70-54=16
54-45=9
45-41=4
41-x=1 ==>x=40 - 6 years agoHelpfull: Yes(0) No(0)
- 70-54=16.....16 is square of 4
54-45=9 ......9 is square of 3
45-41=4 .......4 is square of 2
41-40=1 ......now 1 is square of itself that is 1 - 6 years agoHelpfull: Yes(0) No(0)
- 40 cause each time it is reduced by the square of n and n=4 at first then it is 3 and so on.
- 5 years agoHelpfull: Yes(0) No(0)
- consecutive differnce between two nos are 16,9,4 i.e 4^2,3^2,2^2 therefor difference between 41 and missing no is 1^1 i.e 41-14=1^1 ,40 is the answer
- 5 years agoHelpfull: Yes(0) No(0)
- Ans: 40
Explanation: 70-54=16=4^2
54-45=9=3^2
45-41=4=2^2
Therefore, the next no is such that it is maintaining a difference of 1^2 with its preceding number.
Hence,41-1^2=40. - 5 years agoHelpfull: Yes(0) No(1)
- 70-54=16=4^2
54-45=9=3^2
45-41=4=2^2
41-1=40 - 5 years agoHelpfull: Yes(0) No(0)
- Given series is 70,54,45,41........
70-54=16 ---->4^2
54-45=9 ---->3^2
45-41=4 ---->2^2
so, 41-1^2=40 - 5 years agoHelpfull: Yes(0) No(0)
- 70-(4^2)=54
54-(3^2)=45
45-(2^2)=41
41-(1^2)=40
Therefore, answer is 40 - 5 years agoHelpfull: Yes(0) No(0)
- answer is 40...
the differemce between the series is square of 2,3,4
then the last series is 40 - 5 years agoHelpfull: Yes(0) No(0)
- 40
ans=40
70-40=16:square of 4
54-45=9:square of 3
45-41=4:square of 2
40-41=1:SQUARE OF 1
41-1=40 - 5 years agoHelpfull: Yes(0) No(0)
- Answer is 40 . that can be understandable..
but what about 38 ???? It also can be answer if focus on the difference of number .
like: 16,9,4.... so difference b/w them be like: 7,5.. so next can be 3 and according to the difference next could be "38" also. - 5 years agoHelpfull: Yes(0) No(0)
- 40
reduced by 4^2,3^2,1^2 - 4 years agoHelpfull: Yes(0) No(0)
- 70-(4^2)=54
54-(3^2)=45
45-(2^2)=41
41-(1^2)=40 - 4 years agoHelpfull: Yes(0) No(0)
- 40: 70-54=16=4^2
54-45=9=3^2
45-41=4=2^2
41-40=1=1^2 - 1 Month agoHelpfull: Yes(0) No(0)
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