TCS
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Numerical Ability
Age Problem
Three distinct single digit numbers A, B & C are in G.P. If abs(x) for real x is the absolute value of x, then the number of different possible values of abs(A+B-C) is
1)5
2)6
3)4
4)3
Read Solution (Total 12)
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- the answer could be 5 different possible values
1,2,4 and 4,2,1
2,4,8 and 8,4,2
1,3,9 and 9,3,1
abs(x) could be 1,5,2,10,11 - 10 years agoHelpfull: Yes(19) No(1)
- There can be 6 possible GP sequences:
1 ,2 ,4 and 4, 2, 1
2, 4, 8 and 8, 4, 2
1, 3, 9 and 9, 3, 1
Corresponding values for abs(a+b-c) are 1, 5, 2, 10, 5, 11
so ans=6
- 10 years agoHelpfull: Yes(2) No(4)
- Possible GP series between 1 to 9 are
1,2 4 4,2,1 difference = 2
2,4,8 8 ,4,2 difference = 2
so 4 values possible of (A+B-C) - 10 years agoHelpfull: Yes(1) No(2)
- There can be 6 possible GP sequences:
1 ,2 ,4 and 4, 2, 1
2, 4, 8 and 8, 4, 2
1, 3, 9 and 9, 3, 1
Corresponding values for abs(a+b-c) are 1, 5, 2, 10, 5, 11
so ans=4
- 10 years agoHelpfull: Yes(1) No(3)
- abs(1+2-4)=1
abs(4+2-1)=5
abs(3+1-9)=5
abs(9+3-1)=11
abs(8+4-2)=10
abs(2+4-8)=2...like wise we get the values
- 10 years agoHelpfull: Yes(1) No(0)
- Answer will be 4
- 10 years agoHelpfull: Yes(0) No(3)
- There can be 4 possible GP sequences:
1 ,2 ,4 and 4, 2, 1
2, 4, 8 and 8, 4, 2
Corresponding values for abs(a+b-c) are 1, 7, 2, 10
so ans=4 - 10 years agoHelpfull: Yes(0) No(3)
- @MEGHA values will be 1,5,2,10 respectively not 1,7,2,10
- 10 years agoHelpfull: Yes(0) No(1)
-
Suman it should be 5 as per ur logic
- 10 years agoHelpfull: Yes(0) No(0)
- 6 possible combinations .
gp
1 2 4 =1 & 4 2 1=5
2 4 8=2 & 8 4 2=10
1 3 9=5 & 9 3 1=11 - 10 years agoHelpfull: Yes(0) No(0)
- how these values came as a possible values??( as every1 has answered 1,5,2 ,10,11)
plz explain !! - 10 years agoHelpfull: Yes(0) No(0)
- i didnt get it
- 10 years agoHelpfull: Yes(0) No(0)
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