What is the next number of the following sequence. 7, 13, 25, 49, 97, ....

M4maths Previous Puzzles

12 May 2014 Sequence What is the next number of the following sequence. 7, 13, 25, 49, 97, ....: OPtion
1) 108
2) 123
3) 136
4) 142
5) 154
6) 168
7) 173
8) 186
9) 193
10)None of these; Correct Option: 9 Best Solution (94)

gaurav arora 10 years AGO

7*2=14-1=13
13*2=26-1=25
25*2=50-1=49
49*2=98-1=97
so
97*2=194-1=193
so 193 is answer

Like? Yes (28) | No (7)

MONIKA 10 years AGO

7+7-1=13
13+13-1=25
25+25-1=49
49+49-1=97
so,
97+97-1=193

Like? Yes (8) | No

Rahul Bhadana 10 years AGO

1)7+(6*1) = 13

2)13+(6*2) = 25

3)25+(6*4) = 49

4)49+(6*8) = 96

5)96+(6*16) = 193

so ans is 193

Like? Yes (8) | No (3)

MD SOHAIL AKHTER 10 years AGO

multiply the no. by 2 and subtract 1 from it
7*2-1=13
13*2-1=25
similarly
97*2-1=193

correct option (9)

Like? Yes (6) | No (2)

Dada Khalandar 10 years AGO

(7*2)-1,=13
(13*2)-1=25
(25*2)-1=49
(49*2)-1=97
(97*2)-1=193

Like? Yes (4) | No

sruthi 10 years AGO

7,13,25,49,97

7+7=14 then 14-1=13
13+13=26 then 26-1=25
so
similarly,
97+97=194
194-1=193
option 9 is the right answer

Like? Yes (3) | No

vemula mounika 10 years AGO

7+6=13
13+12=25
25+24=49
49+48=97
97+96=193

Like? Yes (3) | No

Devendra Marghade 10 years AGO

7+(6*1)=13
13+(6*2)=25
25+(6*4)=49
49+(6*8)=97
97+(6*16)=193

Like? Yes (2) | No

T.Aravinth kumar 10 years AGO

97+96=193

Like? Yes (2) | No

KALIA MUDULI 10 years AGO

7*2=14-1=13
13*2=26-1=25
.....
similarly
97*2=194-1=193

Op (9)

Like? Yes (4) | No (2)

Pradeep 10 years AGO

193 as 7*2=14-1=13;13*2=26-1=25,25*2=50-1=49,49*2=98-1=97;97*2=194-1=193}

Like? Yes (2) | No

sakshi 10 years AGO

97*2=194-1=193

Like? Yes (2) | No

ANUP KUMAR 10 years AGO

7
7*2-1=13
13*2-1=25
similarly,
97*2-1=193
option (9)

Like? Yes (5) | No (3)

sonu 10 years AGO

7+6=13
13+12=25
25+24=49
49+48=97
97+96=193

Like? Yes (2) | No

RAKESH 10 years AGO

(2*97-1)=193

Like? Yes (2) | No

rajani 10 years AGO

the next no.is double the current no.-1.
so,2(97)-1=193

Like? Yes (1) | No

ravi prakash 10 years AGO

7*2-1=13
13*2-1=25
25*2-1=49
49*2-1=97
97*2-1=193

Like? Yes (2) | No (1)

azharshahid01@gmail.com 10 years AGO

7
7+(7-1)=13
13+(13-1)=25
25+(25-1)=49
49+(49-1)=97
97+(97-1)=193

Like? Yes (2) | No (1)

Varunraj Reddy 10 years AGO

Given sequence is
7,13,25,49,97,...

The pattern is like this
7,(7*2)-1,(13*2)-1,(25*2)-1,(49*2)-1,..

So the next no. in this sequence is
(97*2)-1=193

So answer is Option 9)

Like? Yes (2) | No (1)

srilakshmi 10 years AGO

double the number and subtract 1 from that.

Like? Yes (1) | No

gowtham 10 years AGO

7,7+7-1=13,13+13-1=25...97+97-1=193

Like? Yes (1) | No

Gitanjali K 10 years AGO

add the same no. in given no. and subtract 1 from it's addition

7+7=14-1=13
13+13=26-1=25
25+25=50-1=49
49+49=98-1=97
97+97=194-1=193
so, option (9) is the answer

Like? Yes (1) | No

Purosotam Gupta 10 years AGO

By the question
7*2=14-1=13
13*2=26-1=25
25*2=50-1=49
49*2=98-1=97
97*2=194-1=193

Like? Yes (1) | No

Sundar Kumar 10 years AGO

7,7+6,13+12,25+24,49+48,97+96=193

Like? Yes (1) | No

pushpanjali 10 years AGO

7*2-1=13
13*2-1=25
.
.
.
97*2-1=193

Like? Yes (1) | No

ASHISH MITTAL 10 years AGO

Add 6*1,6*2,6*4,6*8 and so on

Like? Yes (1) | No

ABHOY KUMAR 10 years AGO

7
7*2-1=13
13*2-1=25
25*2-1=49
49*2-1=97
97*2-1=193

Like? Yes (1) | No

M NAGAMOUNICA 10 years AGO

7+6,13+12,25+24,49+48,
97+96

Like? Yes (1) | No

Ashish Purohit 10 years AGO

the difference b/w number are, multiple of 2...like.....2,4,8,16.....therefore, 6*16=96....and we add 96 to last number 97.....the next series no. will be 193....:)

Like? Yes (1) | No

Bhanu Pratap Singh 10 years AGO

97+96=193

Like? Yes (1) | No

Pranjali Das 10 years AGO

The answer is 193 because :
7*2-1=13
again 13*2-1=25
again 25*2-1=49
again 49*2-1=97
So following this sequence the next number must be
97*2-1=193.

Like? Yes (1) | No

indrajeet yadav 10 years AGO

7*2-1=13
13*2-1=25
25*2-1=49
49*2-1=97
97*2-1=193

Like? Yes (1) | No

Rahul 10 years AGO

7+(7-1)=13
13+(13-1)=25
25+(25-1)=49
49+(49-1)=97
97+(97-1)=193

Like? Yes (1) | No

BHAVANA MADHAVARAM 10 years AGO

97*2-1

Like? Yes (1) | No

usha 10 years AGO

Let the number be x
13-7=6
25-13=12
49-25=48
So x-97=96
x=193

Like? Yes (1) | No

Deepak Baran 10 years AGO

7
7*2-1=13
13*2-1=25
25*2-1=49
49*2-1=97
97*2-1=193

Like? Yes (1) | No

Bhargav g 10 years AGO

7+6=13 for next number add 6*2=12
13+12=25 for next number add 12*2=24
25+24=49 for next number add 24*2=48
49+48=97 for next number add 48*2=96
97+96=193 this is the next number

Like? Yes (1) | No

PAWAN KUMAR 10 years AGO

7+6=13
13+6*2=25
25+6*4=49
49+6*8=97
97+6*16=193

Like? Yes (1) | No

jitendra kumar 10 years AGO

number * 2-1 is the next number and process is continue

Like? Yes (1) | No

Bhagyashree Bhatt 10 years AGO

7*2= 14 -1 = 13
13*2=26 -1 = 25
25*2=50 -1= 49
.
.
.
97*2=194-1=193

Like? Yes (1) | No

kumar rishi 10 years AGO

7*2-1=13
13*2-1=25
........
97*2-1=193

Like? Yes (1) | No

SREEVIDHYA P P 10 years AGO

7*2=14-1=13
13*2=26-1=25
25*2=50-1=49
49*2=98-1=97
97*2=194-1=193
the answer is 193.

Like? Yes (1) | No

vicky kumar 10 years AGO

7+6=13
13+12=25
25+24=49
49+48=97
97+96=193

Like? Yes (1) | No

Plabanee Panda 10 years AGO

3*2^1+1=7
3*2^2+1=13
3*2^3+1=25
3*2^4+1=49
3*2^5+1=97
3*2^6+1=193

Like? Yes (1) | No

Rownaz Haque 10 years AGO

The series follows the condition for the next number in series:
next number=(present number*2) - 1
if present number= 7
next number= (7*2)- 1= 13
then the
next number= (13*2)- 1= 25
and so on

in the case when present number= 97
next number=(97*2)-1= 193....
So the answer is option 9) 193.

Like? Yes (1) | No

anand singh 10 years AGO

7*2-1=13
13*2-1=25
49*2-1=97
97*2-1=193

Like? Yes (1) | No

ROHIT 10 years AGO

7+6=13
13+12=25...
97+96=193

Like? Yes (1) | No

Praful 10 years AGO

7+6=13
13+12=25
25+24=49
49+48=97
97+96=193

Like? Yes (1) | No

Jigyasa Kumar 10 years AGO

difference between the nos. are twice of the previous difference. i.e 1st difference = 6
2nd difference between next two nos. = 12
3rd difference = 24,next 48, next will be 96
so the next number will be 193

Like? Yes (1) | No

Aarush Singh 10 years AGO

This is following a pattern in which the difference between the nos. are twice of the previous difference.1st difference = 6
2nd difference between next two nos. = 12
3rd difference = 24,next 48, next will be 96
so the next number will be 193

Like? Yes (1) | No

abhilasha 10 years AGO

Sequence is the difference between the nos. .the differnece is twice of the previous difference.1st difference = 6
2nd difference between next two nos. = 12
3rd difference = 24,next 48, next will be 96
so the next number will be 193

Like? Yes (1) | No

rahul sharma 10 years AGO

double the previous number and minus 1(a+a-1, b+b-1)

Like? Yes (1) | No

DINESH KUMAR 10 years AGO

7*2-1= 13
13*2-1=25
25*2-1=49
49*2-1=97
97*2-1=193

So the answer is 193

Like? Yes (1) | No

P.ARUNA 10 years AGO

7+6=13,13+12=25,25+24=49,49+48=97,97+96=193

Like? Yes (1) | No

DHIRENDRA 10 years AGO

Doubble the no then subtract 1
7*2=14-1=13
13*2=26-1=25
25*2=50-1=49
49*2=98-1=97
97*2=194-1=193

Like? Yes (1) | No

Ramakrishna 10 years AGO

7*2-1=13
13*2-1=25
25*2-1=49
49*2-1=97
similarly 97*2-1=193

Like? Yes (1) | No

Govind raj 10 years AGO

(number*2)-1...s0 97*2=194-1=193

Like? Yes (1) | No

Gunasekaran M 10 years AGO

7 = 7*2-1 = 13
13 =13*2-1 = 25
similarly,
97 = 97*2-1 = 193

Like? Yes (1) | No

Sukanya 10 years AGO

7
7+6
13+12
25+24
49+48
97+96=193

Like? Yes (1) | No

mahesh 10 years AGO

13-7=6,25-13=12,49-25=24,97-49=48,193-97=96
here the result of diff is getting doubled

Like? Yes (1) | No

SHUBHAM KUMAR 10 years AGO

7*2-1=13
13*2-1=25
25*2-1=49
49*2-1=97
97*2-1=193

Like? Yes (1) | No

Deb Das 10 years AGO

7+6=13
13+12=25
25+24=49
48+49=97
97+96=193

Like? Yes (1) | No

arjun 10 years AGO

difference is 6,12,24,48,96

Like? Yes (1) | No

yashi bhardwaj 10 years AGO

the difference betwwen the numbers is getting double.

Like? Yes (1) | No

saurav 10 years AGO

7+6=13
13+12=25
25+24=49
49+48=97
97+96=193
Each no is gettin added up with the double of that previous no

Like? Yes (1) | No

steffy edmond 10 years AGO

Ans: 9)193
The given number sequence is 7, 13, 25, 49, 97, ....
It is Given in such a way that if x is the first number then the next number is x*2-1 and it goes on..so the next number in the sequence is 97*2-1= 193.

Like? Yes (2) | No (1)

KIRAN KUMARI 10 years AGO

7*2-1=13
13*2-1=25
25*2-1=49
49*2-1=97
97*2-1=193

Like? Yes (1) | No

Ganesh Hembram 10 years AGO

7 + 6 = 13
13 + 12 = 25
25 + 24 = 49
49 + 48 = 97
97 + 96 = 193

Like? Yes (1) | No

sagar wagh 10 years AGO

because,
7+7=14 -1 =13
13+13=26 -1=25
& so on so ... 97+97=194 -1=193

Like? Yes (1) | No

Sourangsu Bandyopadhyay 10 years AGO

13-7=6
25-13=12(6*2)
49-25=24(12*2)
97-49=48(24*2)
Hence the next number=97+(48*2)=97+96=193

Like? Yes (1) | No

Ann Theressa 10 years AGO

7*2-1 = 13
13*2-1 = 25
25*2-1 = 49
49*2-1 = 97
97*2-1 = 193

Like? Yes (2) | No (1)

M.hari Kishore Reddy 10 years AGO

4x2-1=7(8-1)
7x2-1=13(14-1)
13x2-1=25(26-1)
25x2-1=49(50-1)
49x2-1=97(96-1)
97x2-1=193(194-1)

Like? Yes (1) | No

PIYUSH PAREEK 10 years AGO

All the subsequent no are one less than its previous square no.

Like? Yes (1) | No

manish chauhan 10 years AGO

7*2=14-1
13*2=26-1
25*2=50-1
similary
97*2=194-1=193

Like? Yes (1) | No

k.neharika 10 years AGO

between two numbers the series is like.6+6=12,12+12=24,24+24=48,48+48=96

Like? Yes (1) | No

sanghavi 10 years AGO

7+6=13+12=25+24=49+48=97+96=193

Like? Yes (1) | No

NAGENDRA P 10 years AGO

7+7=14=14-1=13
13+13=26=26-1=25
25+25=50=50-1=49
49+49=98=98-1=97
97+97=194=194-1=193
so option (9)

Like? Yes (1) | No

Rajasekhar Reddy 10 years AGO

97+(97-1) = 193

Like? Yes (1) | No

AMIT SINGH 10 years AGO

7+ 6=13
13+12=25
25+24=49
49+48=97
therefore, the net no. is
97+96=193.

Like? Yes (1) | No

bithika das 10 years AGO

7*2=14-1=13
similarly
97*2=194-1=193

Like? Yes (1) | No

Keshav Kishlay 10 years AGO

97*2-1=193

Like? Yes (1) | No

NIRUPOM GHOSH 10 years AGO

difference increasing 6,12,24,48,96.so answer is 193

Like? Yes (1) | No

Anupam Banerjee 10 years AGO

1st no. = 7
2nd no. =(previous no * 2)-1 = (7*2)-1 = 13;
3rd no. = (13*2)-1 = 25;
4th no. = (25*2)-1 = 49;
5th no. = (49*2)-1 = 97;
So, 6th no. = (97*2)-1 = 193 (Ans.);

Like? Yes (1) | No

Jaydev Dinda 10 years AGO

7*2-1=13;
13*2-1=25;
25*2-1=49;
.........;
97*2-1=193;
so the ans is 9)193

Like? Yes (1) | No

Yekollu Muneeswar 10 years AGO

num=prev_num*2-1
hence,num=97*2-1
=193

Like? Yes (1) | No

Priya Dharshini 10 years AGO

7..13..25..49..97
7*2=14-13=1;
14*2=28-25=3;
28*2=56-49=7;
56*2=112-97=15;
now see all the obtained results....
1...3...7...15

the difference between 1 and 3 is 2;
the difference between 3 and 7 is 4;
the difference between 7 and 15 is 8; so obviously,the next one is 16 ...therefore add 16+15=31;
112*2=224-31=19 which is the answer;

Like? Yes (1) | No

Anvesh kumar 10 years AGO

multiply every no with 2 and substact with 1 inorder to generate next no

Like? Yes (1) | No

NAYAN 10 years AGO

7*2-1=13
13*2-1=25
25*2-1=49
49*2-1=97
so
97*2-1=193

Like? Yes (1) | No

animesh bosu 10 years AGO

7, 7+(6), 13+(6*2),25+(12*2),49+(24*2), 97(24*3)

Like? Yes (1) | No

Udhaya kumar 10 years AGO

N+(N-1),,,,,,,,,
97+96=193

Like? Yes (1) | No

Pallab Das 10 years AGO

7*2-1=13
13*2-1=25
25*2-1=49
49*2-1=97
97*2-1=193

Like? Yes (1) | No

SriS 10 years AGO

double the number and subtract 1 one to get next number

Like? Yes (1) | No (1)

Hemalatha 10 years AGO

96*2+1=193

Like? Yes (1) | No (1)

C.Cheniappan 10 years AGO

7+13=20;
20+5=25;
20+25=45;
45+4=49;
etc.

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. 7, 13, 25, 49, 97, ....

M4maths Previous Puzzles

12 May 2014 Sequence

What is the next number of the following sequence.
7, 13, 25, 49, 97, ....

OPtion

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