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Complete the series:
4,-5,11,-14,22,__
Read Solution (Total 7)
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- see the difference b/w numbers. Its -9,16,-25,36,-49. So 22-49=-27 is ans
- 14 years agoHelpfull: Yes(16) No(0)
- 2nd number in series=1st number-(3*3)=-5
3rd number=2nd number+(4*4)=11
4th number=3rd number-(5*5)=-14
5th numer=4th number+(6*6)=22
6th number=5th number-(7*7)=-27 - 14 years agoHelpfull: Yes(5) No(1)
- -27
- 14 years agoHelpfull: Yes(4) No(1)
- Here,4 and (-5)difference is -1...eq(i);(-5)and 11 diff is 6...(ii);11 nd (-14) diff is -3...(iii);(-14) nd 22 diff is 8...(iv).Then,(-1-2=-3)(where -1 from eq(i)-2).then,(6+2=8)then,(-3-2=-5).so between 22 nd (-27) diff are -5.that's why ans is -27.
- 14 years agoHelpfull: Yes(3) No(1)
- 4,-5 > digit diff=9
-5,11 > digit diff= 9+7=16
11,-14 > digit diff=16+9=25
-14,22 > digit diff= 25+11=36
22, -x > digit diff= 36+13=49
hence x= 49-22=27 bt with a -ve sign
so ans is -27 - 14 years agoHelpfull: Yes(2) No(0)
- check the difference of alternate numbers it is increasing by two...
11-4=7
-14--5=-9
22-11=11
x-(-14)=-13
=>x=-27
the signs also change alternately - 14 years agoHelpfull: Yes(1) No(0)
- -27
4+7=11
-5+(-9)=-14
11+11=22
-14-13=-27 for positive add next positive number for negative add negative odd number - 12 years agoHelpfull: Yes(0) No(0)
TCS Other Question
complete the series:
3,8,_,24,_48,63
which of the following has the highest standard deviation?
A.3,0,3,0,3,0
B.-3,-3,-3,-3,-3
C.3,3,3,3,3,3
D.-3,3,-3,3,-3,3