# What is the next Sequence ?

1. 7,6,8,5,3,7,?
2. 13 9,18,21,25,20,?
3. 3,3,4,8,10,36,?
4. 15,30,28,25,20,34,28,?

#### Rams

• Jan 11th, 2006

1. 7,6,8,5,3,7....

The next number is 2.

Explanation:

addition and subtraction applied alternatively. It is adding these numbers -1, 2, -3, 4, -5, ....

7-1 = 6

6+2 = 8

8-3 = 5

5+4 =

#### sivanarayan

• Jan 16th, 2006

7, 7-1, 7+1, (7-2)5, 5-2, 5+2,  (7-4)3, 3-3, 3+3, ....

#### RK

• Jan 18th, 2006

Sequence Pattern: 3 3 4 8 10 36 ?Solution: Odd Sequence Starting from First : 3 4 10 ? Even Sequence Starting from Second : 3 8 36 Calculating Odd Sequence: (3 * 1) + 1 = 3 (4 * 2) + 2 = 10 (10*3) + 3 = 33 Ans Note: Multiplication is happening with consecutive numbers and so is the addition. Calculating Even Sequence: (3*2) + 2 = 8 (8*4) + 4 = 10 (10*6) + 6 = 66 Note: Multiplication is happening with even numbers and so is the addition.Hence the final sequence would be 3 3 4 8 10 36 33 (Ans) 66

#### vinayak

• May 5th, 2006

7,(7-1),(7+1),(7-2)=5,(5-2),(5+2),(5-3)=2,(2-3),(2+3),

hence series is--

7,6,8,5,3,7,2,-1,5......

#### gayatri

• Jul 6th, 2006

The sequence is obtained adding and subtracting.

• Jul 29th, 2006

hai freinds the continuation of the first sequence is 4 as the series will continue as 768537417 as the second term 6 and ist term is 6+1=7 and 3rd term is 7+1=8 and 5th term is 6-3=3 thus the sequence will continue as 417... and the consequtive 3rd term is 7 ok bye to all

#### puneet

• Aug 4th, 2006

2. 13,9,18,21,25,20,? ans: 25

#### kashish

• Jul 14th, 2007

according to me ans is 11
bcoz sequence is
7-1=6
6+2=8
8-3=5
5-2=3
3+4=7
7+5=11

• Jul 19th, 2007

3 ,3,4,8,10,36,...
there are 2 sequences, both start from 3..
the sequence 3,4,10....has the first number 3
next 3*1+1=4
4*2 +2=10
10*3+ 3=33
now...
he sequence at even places
3*2 +2=8
8*4 +4=10
10*6 +6 =66
so the numbers are 3,3,4,8,10,36,33,66

#### rose

• Sep 23rd, 2007

the digit count of the sequence isof the form.....  (ie)1+5=6    3+0=3     2+8=1 etc.
6    3    1    7    2    7    1           .....so the remaining two nos. should have the count 3 and 6 respectively.....
moreover the flow of the sequence is "the second no. is greater than first and all other are less upto the no. with count 2(i.e) middle no.

and the no. next to middle no. (i.e)34 is greater than 20...
so all others should be less than 34....

on keeping all these in mind... v ll have  21          :    2+1=3
15         :     1+5=6

so the sequence is   15  30  28  25  20  34  28  21  15

#### naresh.srkr Profile Answers by naresh.srkr

• Aug 25th, 2010

1. 7 6 8 5 3 7.... The next number is 2. Explanation: addition and subtraction applied alternatively. It is adding these numbers -1 2 -3 4 -5 .... 7-1 6 6+2 8 8-5 3 ..

#### acg

• Nov 16th, 2011

naresh.srkr

You haven't explained how you came up with the 5th number (which is 3). You haven't used the number "4" in your pattern....

7
6 (7-1)
8 (6+2)
5 (8-3)
3 <<<<<< how do you make up this number?
7

Could you explain further if you still think you are right? Anyone else have any alternative explanation?

Thanks !

#### ACG

• Nov 16th, 2011

8*4 +4=36

#### mayank

• Feb 23rd, 2012

Answer is- (4)there are two no. series... One is 7,6,8 and another is 5,3,7.
Now,
7,7-1=6,7+1=8, & 5-2=3,5+2=7,
Cause, the difference between both series last nd first term is 3(i.e,8-5=3) and it will again for the next series. So the next no. will be 7-3=4.

#### ramya

• Apr 8th, 2012

2

#### saipreethy Profile Answers by saipreethy Questions by saipreethy

• Sep 3rd, 2012

I just googled the question here is
9,18,21,25,20,? and there is no 13 before...
can someone plz tell me how to get an answer in that case

#### Snehasish Roy

• Dec 2nd, 2012

19

#### bdpiparva Profile Answers by bdpiparva

• Nov 11th, 2013

here given 7,6,8,5,3,7 we divide this into to part,
part 1 : 7,(7-1),(7+1)
part 2 : 5,(5-2),(5+2)

now first digit follows the patten of 7,5,3,1....

#### ss

• Jan 31st, 2014

split into 2 parts, in first part 7+1=8(odd terms)
6-1=5(even part)

like this, odd part 3+1=4

#### Selvam mk

• Mar 30th, 2014

1rs given to worker....extra.
every one cost 8.33 per item.

#### ramya

• Oct 14th, 2014

7-1=6
7+1=8
5-2=3
5+2=7
3-3=0
3+3=6

#### Md. Noor-A-Alam Siddique

• Feb 22nd, 2015

Answer will be SIX ( 6 ).

Explanation :
7*1 = 07 [ last digit : 7 ]
7*8 = 56 [ last digit : 6 ]
7*4 = 28 [ last digit : 8 ]
7*5 = 35 [ last digit : 5 ]
7*9 = 63 [ last digit : 3 ]
7*11 = 77 [ last digit : 7 ]
7*18 = 126 [ last digit : 6 ]
7*14 = 98 [ last digit : 8 ]
7*15 = 105 [ last digit : 5 ]
7*19 = 133 [ last digit : 3 ]
7*21 = 147 [ last digit : 7 ]
7*28 = 196 [ last digit : 6 ]
7*24 = 168 [ last digit : 8 ]
..... ..... ....
..... ..... ....
So, if we multiply 7 by 1,8,4,5,9 OR 11,18,14,15,19 OR 21,28,24,25... we always get this flow 7,6,8,5,3 as multiplication results last digit .