# Aptitude - Odd Man Out and Series - Discussion

Discussion Forum : Odd Man Out and Series - Find Wrong No. (Q.No. 4)

*Directions to Solve*

Find out the wrong number in the series.

4.

445, 221, 109, 46, 25, 11, 4

Answer: Option

Explanation:

Go on subtracting 3 and dividing the result by 2 to obtain the next number.

Clearly, 46 is wrong.

Discussion:

23 comments Page 1 of 3.
Laxmi said:
1 decade ago

series is wrong....think so

if wrong number is 46

it should be 445,221,109,53,46(45),21,9,3...

if wrong number is 46

it should be 445,221,109,53,46(45),21,9,3...

Thiyagu said:
1 decade ago

it's 46

Nagendramurthy said:
1 decade ago

Let me explain ..

445-3=442

442/2=221

221-3=218

218/2=109

109-3=106

106/2=53

53-3=50

50/2=25

25-3=22

22/2=11

11-3=8

8/2=4

So after 109 it should be 53.. in the given series it is 46 so

Have a nice day..!

445-3=442

442/2=221

221-3=218

218/2=109

109-3=106

106/2=53

53-3=50

50/2=25

25-3=22

22/2=11

11-3=8

8/2=4

So after 109 it should be 53.. in the given series it is 46 so

Have a nice day..!

AMMU said:
1 decade ago

Nice explanation by Mr. Nagendramurthy. Thanks.

Priyanka said:
1 decade ago

4*2+3=11

11*2+3=25

25*2+3=53 ------------ 46 which is an wrong series.

53*2+3=109

109*2+3=221

221*2+3=445

You might can understand this.

11*2+3=25

25*2+3=53 ------------ 46 which is an wrong series.

53*2+3=109

109*2+3=221

221*2+3=445

You might can understand this.

Satya said:
1 decade ago

I had solved this problem like this.

Starting from the end.

4.

4+7=11,

11+14=25,

25+21=46,

46+28=74. So 109 is wrong.

Can anybody say whether the way is correct are not? and why?

Starting from the end.

4.

4+7=11,

11+14=25,

25+21=46,

46+28=74. So 109 is wrong.

Can anybody say whether the way is correct are not? and why?

Adesh said:
1 decade ago

Yes 109 is wrong because 74* 35=2590 which is not the next number in the given series?

BoB said:
10 years ago

Hi but how did you find that it must be subtracted by 3 and multied by 2, seeing the question ? can any one help please.

Srinithi said:
9 years ago

Its really a tough question. Could not judge the way in which the series is written?

Albert said:
8 years ago

Very tough to find the answer.

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