What is the next number of the following sequence 25, 77, 154, 605,......

M4maths Previous Puzzles

21 Jul 2014 Sequence What is the next number of the following sequence 25, 77, 154, 605,......: OPtion
1) 989
2) 999
3) 1211
4) 1111
5) 1212
6) 1055
7) 972
8) 1112
9) 2111
10)None of these; Correct Option: 4 Best Solution (113)

Sundar Kumar 10 years AGO

25, 77, 154, 605,......
answer: previous no- reverse of previous no
25+52=77
77+77=154
154+451=605
605+506=1111
answer: option 4) 1111

Like? Yes (42) | No (4)

Saraswathy 10 years AGO

No. + Reverse of no. = Next number
25 + 52 = 77
77 + 77 = 154
154 + 451 = 605
605 + 506 = 1111

Ans : 1111 (Option 4)

Like? Yes (10) | No (3)

SRI MEENAKSHI 10 years AGO

25+52= 77, 77+77=154, 154+451=605, 605+506=1111

Like? Yes (5) | No

Grishma Shah 10 years AGO

25
25 + 52 = 77
77 + 77 = 154
154 + 451 = 605
605 + 506 = 1111

Like? Yes (3) | No

shilpa 10 years AGO

25+52=77
77+77=154
605+506=1111

Like? Yes (3) | No

Devendra Marghade 10 years AGO

Add the number with its digits reversed to get next number
25+52=77
77+77=154
154+451=605
605+506=1111

Like? Yes (2) | No

navneet shankhwar 10 years AGO

two numbers differnce is just opposite the first number.
77-25=52
52 is just opposite 25.
therefore, the next numbers differenc must 506.
506+605=1111

Like? Yes (2) | No

KRISHNA CHANDRA UPADHYAY 10 years AGO

REVERSE THE DIGIT OF EVERY NUMBER AND ADD THE RESULTING NUMBER TO THE ORIGINAL NUMBER,IN THIS WAY THE NEXT NUMBER OF THE GIVEN SERIES IS COMING.
i.e
25+52=77
77+77=154
154+451=605
AND
605+506=1111
HENCE, OPTION (4) IS CORRECT.

Like? Yes (2) | No

Deepanwita 10 years AGO

25+(reverse the positions of the first and last digits) i.e 52=77
77+77=154
154+451=605
605+506=1111

Like? Yes (2) | No

Aravinth kumar 10 years AGO

25+52= 77
77+77=154
154+451=605
605+506=1111

Like? Yes (2) | No

Yamuna Muthusamy 10 years AGO

Add the number and the reverse of that number to get the next number.
25+52=77
77+77=154
154+451=605
therefore,
605+506=1111
ans: 1111

Like? Yes (2) | No

Priya Dharshini 10 years AGO

25-77=52 which is reverse of 25 and 25+52=77;
then 77-154=77 which is reverse of 77 and 77+77=154;
similarly,reverse of 154 is 451+605=1111; which is the answer

Like? Yes (2) | No

bhargavi 10 years AGO

reverse the number and add it
25+52=77
77+77=154
154+451=605
605+506=1111
Ans: 1111

Like? Yes (2) | No

SAHIL DIWAN 10 years AGO

77-25=52 (reverse of 25)
154-77=77(reverse of 77)
605-154=451(reverse of 145)
x-605=506
imply x=506+605=1111

Like? Yes (2) | No (1)

Asha Praveena 10 years AGO

Reverse of 25 is 52 ==>25+52=77
Reverse of 77 is 77 ==>77+77=154
Reverse of 154 is 451 ==>154+451=605
similarly
Reverse of 605 is 506 ==>605+506=1111

Like? Yes (2) | No (1)

Liti 10 years AGO

25+52=77
77+77=154
154+451=605
605+506=1111

Like? Yes (2) | No (1)

Varunraj Reddy 10 years AGO

25,77,154,605,...
Number+Reverse of that number=Next number
25+52=77
77+77=154
154+451=605
Then
605+506=1111

Option 4)

Like? Yes (2) | No (1)

Sneha Goel 10 years AGO

605+506=1111

Like? Yes (2) | No (1)

Dr.Dipin Singh 10 years AGO

25, 77, 154, 605,......
reverse the digits and add to number to get next number.
like 25+52=77
.
.
hence 605+506=1111

Like? Yes (2) | No (1)

priya saha 10 years AGO

ansr 1111 because
the next number is obtained by adding the previous number with its inverse... as
25(+52), 77(+77), 154(+451) 605(+506) , 1111

Like? Yes (2) | No (1)

sompon temtheerakij 10 years AGO

25+52 = 77
77+77 = 154
154+451 = 605
605+506 = 1111

Like? Yes (1) | No

vimal 10 years AGO

25,77,154,605
Just opposite and add each number
25+52=77,77+77=154,154+451=605
so,605+506=1111

Ans is:4(1111)

Like? Yes (2) | No (1)

JANARTHANAN RAM 10 years AGO

25+52=77;
77+77=154;
154+451=605;
605+506=1111;

Like? Yes (2) | No (1)

Maraiah 10 years AGO

current_value+its reverse value = next_value
25
25+52 =77
77+77=154
154+451=605
605+506=1111

so answer is 1111(4)

Like? Yes (1) | No

Dinesh kumar 10 years AGO

77-25= 52...
i.e Reverse of 25....
So we have to add the number by its reverse order
77+77=154
154+451=605
605+506=1111....

Like? Yes (1) | No

Basavasagar 10 years AGO

25+52=77
77+77=154
154+451=605
605+506==1111

Like? Yes (1) | No

nigarashraf 10 years AGO

25-77=52
154-77=77
605-154=451
so,52,77,451 is the new series
it is placed in reverse order as the no. given.
25,77,154
so.605+506=1111 is the next no.

Like? Yes (1) | No

Rahul Bhadana 10 years AGO

25 + 52(reverse the no) = 77

77 + 77 = 154

154 + 451 = 605

605 + 506 = 1111

Like? Yes (1) | No

Avinash Kumar 10 years AGO

154+451 = 605, and 605+506 = 1111,

Like? Yes (1) | No

Ankit Sachan 10 years AGO

25+52=77
77+77=154
154+451=605
605+506=1111

Like? Yes (1) | No

Narendra Jadon 10 years AGO

25 + 52(reverse of 25 = 77) = 77
77 + 77(reverse of 77 =77) = 154
154 + 451 ( reverse of 154 = 451) = 605
605 + 506(reverse of 605 = 506) = 1111

Like? Yes (1) | No

Ravi Bhalani 10 years AGO

25 ,reverse it so 52 then add it to 25 So, 77
77 ,reverse it so 77 then add it to 77 So, 154
154 ,reverse it so 451 then add it to 154 So, 605
605 ,reverse it so 506 then add it to 605 So, 1111

Like? Yes (1) | No

Gokul Krishnan 10 years AGO

reverse addition of adding the series ie.,25+52=77,77+77=154,154+541=605+506=1111.Hence the next number is 25,77,154,605,1111

Like? Yes (1) | No

Ramesh Sriram 10 years AGO

25, 77, 154, 605, and 1111
25+52=77
77+77=154
154+451=605
605+506=1111
series number+reverse of it=next number

Like? Yes (2) | No (1)

Ravi Kumar Kodari 10 years AGO

25, 77, 154, 605, and 1111
25+52=77
77+77=154
154+451=605
605+506=1111
series number+reverse of it=next number

Like? Yes (2) | No (1)

Amit kumar 10 years AGO

25+52=77, 77+77=154, 154+451=605, 605+506=1111

Like? Yes (1) | No

T.RAJAMADHANGI 10 years AGO

25 reverse 52
So 25+52=77
Then 77 revese 77
25+52+77=154
154 reverse 451
25+52+77+451=605
605 reverse 506
So 25+52+77+451+506=1111.
ANS: 1111

Like? Yes (1) | No

potani manikumar 10 years AGO

25 reverse +25=77
77 reverse+77=154
154 reverse+154=605 ...

Like? Yes (1) | No

kulasekhar reddy 10 years AGO

25+52=77
77+77=154
154+451=605
605+506=1111

Like? Yes (1) | No

hareesh 10 years AGO

25+52=77
605+506=1111

Like? Yes (1) | No

shabih abbas 10 years AGO

77=25+52
154=77+77
605=154+451
605+506=1111

Like? Yes (1) | No

dheeraj 10 years AGO

25+52=77
77+77=154
154+451=605
605+506=1111

Like? Yes (1) | No

LOKESH SAMANT 10 years AGO

no shoucld add with reverse of the no.
25 + 52 =77
77+77=154
154+451=605
605+506=1111

Like? Yes (1) | No

nassarshahab 10 years AGO

the no. is reverse
25+52=77
77+77=154
154+451=605
605+506=1111

Like? Yes (1) | No

Sailaja 10 years AGO

25+52= 77
77+77= 154
154+451= 605
605+506= 1111

Like? Yes (1) | No

Arijit Acharyya 10 years AGO

add each number with its reverse number
25+52=77
77+77=154
154+451=605
605+506=1111

Like? Yes (1) | No

pragati soni 10 years AGO

25+52=77 , 77+77=154 , 154+451=605 , 605+506 = 1111

Like? Yes (1) | No

rajani 10 years AGO

the next number is sum of the current number and reverse of it.
25+52=77
77+77=154
154+451=605
in the same way 605+506=1111

Like? Yes (1) | No

Rakesh Kumar Jangam 10 years AGO

LOGIC :Reverse the previous number and add
77 = 25 +52( reverse of 25),
154 = 77+77,
605= 154+ 451,
hence required solution = 605+506 = 1111

Like? Yes (1) | No

HARDIP BHALANI 10 years AGO

25 ,reverse it so 52 then add it to 25 So, 77
77 ,reverse it so 77 then add it to 77 So, 154
154 ,reverse it so 451 then add it to 154 So, 605
605 ,reverse it so 506 then add it to 605 So, 1111

Like? Yes (1) | No

Harshad 10 years AGO

25 ,reverse it so 52 then add it to 25 So, 77
77 ,reverse it so 77 then add it to 77 So, 154
154 ,reverse it so 451 then add it to 154 So, 605
605 ,reverse it so 506 then add it to 605 So, 1111

Like? Yes (1) | No

g.soujanya 10 years AGO

25+52=77
77+77=154
154+451=605
605+506=1111

Like? Yes (1) | No

Nilesh Dattatraya Veer 10 years AGO

In 25 and 77 difference=52 means reverse of small number 25
In 77 and 154 difference=77 means reverse of small number 77
In 154 and 605 difference=451 means reverse of small number 154
so 605 and x must have difference=506
x-605=506
x=1111

Like? Yes (1) | No

Komala.G 10 years AGO

Option 4
25+52 = 77
77+77 = 154
154+451 = 605
605+506 = 1111

Like? Yes (1) | No

Venu Gopal 10 years AGO

Reverse the present number+add it\'s original number..

Eg:take 25.... reverse it =52.
now add 52+25=77.
Similarly, 506+605=1111.
Thank you :D

Like? Yes (1) | No

poojasaisri 10 years AGO

77-25=52 reverse of 52 is 25
154-77=77 reverse of 77 is 77
605-154=451 reverse of 451 is 154
so,,now 605 reverse number is 506
605+506=1111
reverse of 1111 is the same
so answer is 1111 the option 4

Like? Yes (1) | No

Soheli Bhaduri 10 years AGO

25+52=77,77+77=154,154+451=605,605+506=1111

Like? Yes (1) | No

Anurag Kumar Singh 10 years AGO

add the no. and it's reverse

25 + 52 = 77
77 + 77 = 154
154 + 451 = 605
605 + 506 = 1111

Like? Yes (1) | No

vishnuvardhan 10 years AGO

25+52=77[adding reverse of number]
77+77=154
154+451=605
605+506=1111

Like? Yes (1) | No

SAURADIPTA SADHU 10 years AGO

Each next number is the result of addition of previous number and reverse of the number(i,e, reversing the digits).

Like? Yes (1) | No

samir kumar das 10 years AGO

25+52=77
77+77=154
154+451=605
605+506=1111

Like? Yes (1) | No

Tark Patel 10 years AGO

Reverse the current number and add with the previous number like reverse of 25 is 52 then 25+52=77 , 77+77=154 , 154+451=605 , 605+506=1111

so next number is 1111.

Like? Yes (1) | No

vibhu raj gupta 10 years AGO

reverse the term and add it as 25 is the first term then add 52 to it we get 77 and so on....
we get 605+506=1111

Like? Yes (1) | No

goral 10 years AGO

25+52=77
77+77=154
154+451=605
so,
605+506=1111

Like? Yes (1) | No

Shanmugapriya 10 years AGO

Difference of two numbers is the reverse of first number

25+52=77
77+77=154
154+451=605
605+506=1111

Like? Yes (1) | No

Sankar 10 years AGO

First take the number 25. Reverse the number 25 we will get 52 and add 25 and 52 we get 77. This process continues as
77+77=154
154+451=605
605+506=1111

Like? Yes (1) | No

Gagan Jawa 10 years AGO

25+52 = 77
77+77 = 154
154+451 = 605
605+506 = 1111

Like? Yes (1) | No

Rammohana rao Balaga 10 years AGO

25 + 52 reverse(25) = 77
77 + 77 reverse(77) =154
154 + 451 reverse(154) = 605
605 + 506 reverse(605) = 1111

Like? Yes (1) | No

Ankur Tamrakar 10 years AGO

Add each number with its digits reversed. So 605+506=1111. So 4).

Like? Yes (1) | No

Sona Joseph 10 years AGO

25+52=77
77+77=154
154+451=605
605+506=1111

Like? Yes (1) | No

NAMBURU L V S MOUNIKA 10 years AGO

25=52=77
77+77=154
154+451=605
605+506=1111

Like? Yes (1) | No

DIPAK TIWARI 10 years AGO

//Trick is add the number with its reverse order.//
Example: 25+52=77
77+77=154
154+451=605
605+506=1111

Like? Yes (1) | No

SHANMUGAPRIIYAN 10 years AGO

25 reverse 52
25+52=77
77 reverse is 77
25+52+77=154
154 reverse 451
25+52+77+451=605
605 reverse 506
25+52+77+451+506=1111

Like? Yes (1) | No

Aravinthkumar 10 years AGO

25+52= 77
77+77=154
154+451=605
605+506=1111

Like? Yes (1) | No

krishna kanth 10 years AGO

logic is adding the reversal number of the present number to the same gives the next number
i.e. 25+52=77
77+77=154
154+451=605
605+506=1111

Like? Yes (1) | No

abhishek kumar 10 years AGO

number+reverse of the number=next number
i.e 25+52=77
77+77=154
154+451=605
so
605+506=1111

Like? Yes (1) | No

vinusha reddy 10 years AGO

25,25+52=77,77+77=154,154+541=605,605+506=1111

Like? Yes (1) | No

Saranya 10 years AGO

25+52=77
77+77=154
154+451=605
605+506=1111

Like? Yes (1) | No

T.Aravinth kumar 10 years AGO

605+reverse f the number(506)=1111

Like? Yes (1) | No

garima sharma 10 years AGO

with every number its reverse sequence is add.
25,77,154,605
25+52=77
77+77=154
154+451=605
605+506=1111

Like? Yes (1) | No

saiprasanna 10 years AGO

25+52=77
77+77=154
154+451=605
605+506=1111

Like? Yes (1) | No

ananthavalli 10 years AGO

It is the addition of reverse of a number
25+52=77
77+77=154
154+451=605
605+506=1111
so the option 4)=1111 is correct

Like? Yes (1) | No

Rayapureddy V Sai Kiran 10 years AGO

77-25=52...its inverse of 25.....likwise 154-77=77 inverse of 77......likwise 605-154=451 its inverse of 154......hence to obtain next num add inverse of 605 i.e 506 to 605 so we obtain 1111

Like? Yes (1) | No

Mahalakshmi A 10 years AGO

25+52=77
77+77=1554
605+506=1111

Like? Yes (1) | No

kunchala kishore babu 10 years AGO

25+52=77
77+77=154
154+451=605
605+506=1111
therefore answer is 1111

Like? Yes (1) | No

a.k.gayathridevi 10 years AGO

number+its reverse =next number

Like? Yes (1) | No

Udhaya kumar 10 years AGO

25+52
77+77
154+451
605+506 = 1111..........

Like? Yes (1) | No

SIVA BALSUBRAMANIAN 10 years AGO

b-a=ans
77-25=52
154-77=77
605-154=451
ans is mirror of b .
so
1111-605=506

Like? Yes (1) | No

Rakesh 10 years AGO

just reverse the last number and add them....i.e.,
25+52=77.....
77+77=154
605+506=1111

Like? Yes (1) | No

Rajesh 10 years AGO

just reverse and add the numbers...
605+506=1111

Like? Yes (1) | No

MANU 10 years AGO

25+52(reverse of 25)=77
77+77(reverse of 77)=154
154+451(reverse of 154)=605
605+506(reverse of 605)=1111

Like? Yes (1) | No

Chandan Praneeth 10 years AGO

25+52=77
77+77=154
154+451=605
605+506=1111

Like? Yes (1) | No

Ajith kumar 10 years AGO

25+52=77
77+77=154
154+451=605
605+506=1111

Like? Yes (1) | No

susmit 10 years AGO

Reverse the digits and add
25 + 52 = 77
77 + 77 = 154
Hence,
605+506 = 1111(option no.4)

Like? Yes (1) | No (1)

Ann Theressa 10 years AGO

25+52 =77
77+77 = 154
154+451 = 605
605+506 = 1111

Like? Yes (1) | No (1)

Jigyasa Kumar 10 years AGO

The next no. in the sequence is that no. which when subtracted from the previous no. gives the previous no. but in reverse order.
That means, 1111-605 = 506, 506 is the previous no. but written in reverse order.

Like? Yes (1) | No (1)

Yogesh 10 years AGO

25,77,154,605

25+52=77
77+77=154
154+451=605
605+506=1111

Like? Yes (1) | No (1)

abhilasha 10 years AGO

Like? Yes (1) | No (1)

shree 10 years AGO

605+506=1111

Like? Yes (1) | No (1)

Smriti 10 years AGO

605+506=1111

Like? Yes (1) | No (1)

BHANU KUMAR 10 years AGO

we have the numbers..................
25,77,154,605,.......
25+52=77
77+77=154
154+451=605
i.e the next number can be obtained by adding the number with the number formed by reversing its digits.
hence we have the next number=605+506=1111[(OPTION (4)]

THANK YOU.......

Like? Yes (2) | No (2)

BITU KUMAR NIRALA 10 years AGO

Next Number=previous Number + Reverse of Previous Number
25 + 52=77
77 + 77=154
154 + 451=605
hence the next number is =605 + 506
=1111
Answer:-option no (4) 1111

Like? Yes (2) | No (2)

nageshwarnk 10 years AGO

605+506=1111

Like? Yes (1) | No (1)

Ritika 10 years AGO

77-25=52
154-77=77
605-154=451
Difference of no's is reverse of no,so
605+506=1111

Like? Yes (1) | No (1)

Deb Das 10 years AGO

25+52=77
77+77=154
154+541=605
605+506=1111

Like? Yes (1) | No (1)

Vinay Sipani 10 years AGO

nth term = previous term + reverse of previous term.

25
77 = 25 + 52
154 = 77 + 77
605 = 154 + 451
next term = 605 + 506 = 1111

Like? Yes (1) | No (1)

Dharmendra 10 years AGO

next term=previous term+reverse digit of previous term
eg.. 605+506=1111

Like? Yes (1) | No (1)

Mukund Shandilya 10 years AGO

25,77,154,605,...
reverse the number then add is next element
25 , 77 ,154 , 605
+ + + +
52 77 451 506
-------------------------
77 154 605 1111

so answer is 1111

Like? Yes (1) | No (1)

Vikash Kumar Azad 10 years AGO

reverse and add these no to given no

Like? Yes (1) | No (1)

Anish Mathur 10 years AGO

logic :-
reverse and add
like 25 reverse is 52 then add 25+52=72
77 reverse is same then add 77+77=154
154 reverse is 451 then add 154+451=605
605 reverse is 506 then add 605+506=1111

Like? Yes (1) | No (1)

naina 10 years AGO

reverse each no & add it
25+52=77
77+77=154
154+451=605
=>605+506=1111

Like? Yes (1) | No (1)

dushyant singh pawar 10 years AGO

given series is : 25,77,154,605,......

Here each next number in the series is the sum of its earlier number and its interchanged digits.

hence 25+52=77

and 77+77=154

and 154+451=605

hence ,

605+506=1111 [answer is option 4]

Like? Yes (1) | No (1)

RAHUL RANJAN 10 years AGO

reverse each no and add with it..
25;
25+52=77;
77+77=154;
154+451=605;
605+506=1111 ans

Like? Yes (1) | No (1)

Dimple

India

Punjab

Time: 00:01:33

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What is the next number of the following sequence 25, 77, 154, 605,......

M4maths Previous Puzzles

21 Jul 2014 Sequence

What is the next number of the following sequence
25, 77, 154, 605,......

OPtion

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