7, 14, 55, 110, ?

M4maths Previous Puzzles

03 Sep 2010 Find the next

7, 14, 55, 110, ?

OPtion

1) 220
2) 121
3) 111
4) 221
5) 540
6) 190
7) 185
8) 310
9) 131
10) 200

Solution

add the number and its reverse you will get the next number.
7 + 7 = 14
14+41 = 55
55+55 = 110
110+011 = 121

Correct Option: 2 Best Solution (13)

Karthik Pandiyan   13 years AGO

next term = prev term + reverse of prev term
7+7=14
14=41=55
55+55=110
110=11=121

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Dr.Dipin Singh   13 years AGO

7, 14, 55, 110, ?
7+7=14;
14+41( in reverse order) = 55;
55+55( in rev order) = 110;
110+011( in rev order) = 121......... option 2

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Dolly   13 years AGO

7......
7+7=14....
14+41= 55....
55+55=110....
110+011= 121.... opt 2

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Saranjit Singh   13 years AGO

Take digits in reverse order and add in previous number to get new number .

14+41=55

similarly 110+011=121

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Aman   13 years AGO

110+011( in reverse seq of 110)=121

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Mayur   13 years AGO

110+011=121

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JeyaMurugan   13 years AGO

diff 7,41(reverse of 14),55(reverse of 55),

011(reverse of 110) so answer 121

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Dinesh Babu   13 years AGO

7+7=14
14+41=55(41 is reverse of 14)
55+55=110(55 is reverse of 55)
110+011=121(011 is reverse of 110)
so answer is 121

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Khanna   13 years AGO

Take the digits of a number in reverse order and add that number to previous number to get new number.
If xy is initial number and AB is next number, then
i.e xy+yx = AB like 110+011=121

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Mamon Sengupta   13 years AGO

1st term: 7; Reverse: 7,
2nd term: 7+7=14; Reverse: 41,
3rd term: 14+41=55; Reverse: 55,
4th term: 55+55=110; Reverse: 11,
5th term: 110+11=121..... Option 2)

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Trishita Dasgupta   13 years AGO

1st term: 7; Reverse: 7,
2nd term: 7+7=14; Reverse: 41,
3rd term: 14+41=55; Reverse: 55,
4th term: 55+55=110; Reverse: 11,
5th term: 110+11=121..... Option 2)

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PADMASHREE   13 years AGO

110+11=121 option 2

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Inder   13 years AGO

110+011= 121 as abc+cba

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