What is the next number of the following sequence 59, 68, 74, 78, 85,......

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09 May 2016 Sequence

What is the next number of the following sequence
59, 68, 74, 78, 85,......

OPtion

1) 91
2) 89
3) 92
4) 93
5) 97
6) 102
7) 104
8) 99
9) 101
10)None of these

Solution

59
5(9)+9 = 68 (Add last digit)
(6)8+6 = 74 (Add first digit)
7(4)+4 = 78 (Add last digit)
(7)8+7 = 85 (Add first digit)
Similarly
8(5)+5 = 90 (Add last digit)
Option 10)

Correct Option: 10 Best Solution (10)

Mukund Manohar   8 years AGO

Alternately add last and first digit to every number of the sequence.
59 + 9 = 68 (adding last digit of 59)
68 + 6 = 74 (adding first digit of 68)
74 + 4 = 78 (adding last digit of 74)
78 + 7 = 85 (adding first digit of 78)
Now, 85 + 5 = 90 (adding last digit of 85)

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Aakash Beniwal   8 years AGO

adding first digit to number and last digit t number alternatively i.e
59 + 9 = 68
68 + 6 = 74
74 + 4 = 78
78 + 7 = 85
hence
85 + 5 = 90
Non of these.

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ashish   8 years AGO

This series is formed by adding the 1st and 2nd digit from each number
59+9( second digit i.e. 9) =68
68+6( first digit i.e. 6) = 74
74+4( second digit i.e. 4)=78
.
.
so
85+5=90
Hence none of these

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MRITUNJAY   8 years AGO

59+9=68
68+6=74
74+4=78
78+7=85
85+5=90
Option 10

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Saurabh Kaul   8 years AGO

59-the second digit is 9 therefore difference is 9

68- the first digit is 6 therefore difference is 6

74- the second digit is 4 therefore difference is 4

78- the first digit is 7 therefore difference is 7

85- the second digit is 5 therefore difference will be 5

the number will be 90

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Abdul rahiman c m k   8 years AGO

59+9=68
68+6=74
74+4=78
78+7=85
85+5=90
adding alternate digit to the number to get next number.

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Akshat Sood   8 years AGO

Series is like this,

59+(9)=68
68+(6)=74
74+(4)=78
78+(7)=85
85+(5)=90

In first we adding no. and and tens place. then in 2 nd we adding no. and ones place and so on

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Ritesh Ranjan   8 years AGO

The Sequence Being followed here is
59-68-74-78-85
Diff-9-6-4-7
Again 3-2-3-Should be 2
So in order to get a difference of 2 we have to increase the value of 85 by either 5 or 9
i.e.(90 or 94) in that way we will be getting a difference of 2.

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BARUN PANDIT   8 years AGO

difference between first two no. is equal to unit place of first no.

similar if we consider second and third no. now we will get difference is equal to tens place of second no.

similar as we proceed further we will get difference once unit place of first no then tens place as a difference

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Devendra Marghade   8 years AGO

Add unit place digit and tens place digit alternatively to the number to get next number.
59+9=68
68+6=74
74+4=78
78+7=85
85+5=90
Optipn 10) None of these

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