The
number series will be asked for 5 to 10 marks most of the competitive examinations like SSC, SBI, IBPS, UPSC, SSC CGL, CIVIL SERVICE EXAMS
just go through the below given series.
1.
1, 2, 3, 6, 11, 20, 37,
68,? (ans 125)
(sum
of previous two+ current face value means, 1+2=3, 1+2+3=6, same way
20+37+68= Ans 125 )
2.
9, 3, 24, 4, 9, 3, 36, 6, 9, 3, 30,? (ans
5)
(pattern
is x*3,x*6 means,3*3=9,4*6=24, same way 3*3=9, 5*6=30 so
Ans
5 )
3.
44, 4.4, .88, .264, 0.1056, ?
(ans 0.0528)
(
pattern is x*.1,x*.2,x*.3. X*.4....Ans=0.5*0.1056 = 0.0528)
4.
81, 9^2, 162, 49, 7^2, 98, 25, 5^2, 50, 64, 8^2 ?
(ans 128 )
(81*2=162,
49*2=98, 25*2=50, similarly 64*2=Ans 128)
5.
1, 1, 2, 4 , 6, 36, 39, 1521, ? (ans
1525 )
(1+1=2
,4+2=6 ,36+3=39 ,1521+4=Ans 1525)
6.
2, 8, 3, 27, 4,
64, 5, 125, 6, 216, ? (ans
7)
(See alternate numbers -> 2, 3, 4.Ans=7)
7.
3, 7, 10, 8, 4,
12, 0, 5, 5, 3, 2, ? (ans
5)
(Divide the 3 elements into one group 3+7=10,8+4=12,0+5=5,so 3+2=5 is the answer)
8.
2, 3, 6, 13, 28, ? (ans
59)
(
(2*2)-1=3, (3*2)+0=6, (6*2)+1=13, (13*2)+2=28, so the answer is
(28*2)+3=59 )
9.
38, 36, 76, 35, 114, 34, ? (ans
152)
(
38+38=76, 76+38=114, so Ans is 114+38= 152 )
10.
96, 64, 128, 192,
128, 256, 288, 192, ? (ans
384)
(Break
like this (96, 64, 128,) (192, 128, 256,) (288, 192, ?)
96*2=192,
96*3=288 and 128*2=256 128*3=384 is the Ans)
11.
1370, 1320, 1070, -180, ? (ans
-6430)
(difference -50, -250, -1250 and 50*5, 250*5, next Ans will be -1250*5=
-6250
and (-180-6250)=−6430 is the Answer )
12.
3, 2, 1, 4, 5, 4,
5, 1, 0, 6, 3,
? (ans
2)
(
3,( 2, 1) 4,( 5, 4) 5, (1, 0) 6, (3, 2) second term one less so ans
= 2 )
13.
3, 7, 10, 8, 4,
12, 0, 5, 5, 3, 2, ? (ans
6)
(
3+7=10, 8+4=12, 0+5=5, 3+2=6 is the Ans )
14.
19, 24, 20, 25,
21, 26, ?
(ans 22)
(add
and subtract +5 and -4 respectively so the Ans is 22)
15.
11, 14, 12, 15,
13, 16, ?
(ans 14)
(add
and subtract +3 and -2 respectively so the Ans is 14)
16.
10, 2, 8, 2, 6, 2,
? (ans 4)
(
10-2=6, 8-6=4, 6-2=4 is the Ans)
17.
8, 9, 11, 14, 18,
23, ?
(ans 29)
(go
on adding +1, +2, +3, +4, +5, +6 …. so the Ans is 29)
18.
14,
2, 12, 4, 10, 6, ?
(ans 8 )
(14-2=12,
12-2=10, 10-2= 8 Ans is 8)
19.
7,
4, 6, 3, 4.5, 1.5, 2.25, ? (ans
-0.75 )
(7-3=4
, 4+2= 6, 6-3=3, 3+1.5=4.5, 4.5-3=1.5, 1.5+0.75=2.25, 2.25-3=-0.75 )
20.
1,
1, 2, 4, 6, 36, 39, 1521, ? (ans
1525)
(1^1=1,
1+1=2, 2^2=4, 4+2=6, 6^6=36, 36+3=39, 39^39=1521, next 1521+4=1525 is
the Ans)
21.
2,
9, 5, 49, 11, 169, ? (ans
17)
(prime
number series with alternative squares 2, 3^2,5, 7^2,11,13^2, next
number is 17 )
22.
49,
7, 98, 16, 4, 48, 9, 3, 36, 25, 5, ?
(ans 50)
(
consider three number at a time 49, 7, 98 (7^7=49, 49*2=98)
16,
4, 48 (4^4=16, 16*2=48) similarly 25, 5, ? (5^5=25, 25*2=50)
23.
2,
6, 5, 14, 11, 26, 17, ? (ans
38)
(it
is prime number series 2,3*2,5,7*2,11,13*2,17,(19*2=38) )
24.
7, 0, 1, 8, 5, 12, 9, 26, 3, 23, 2,? (ans
28)
(7+0+1=8,
5+12+9=26, 3+23+2=28 )
25.
2,
3, 10, 15, 26, ?
(ans
35)
(
(1^2)+1=2, (2^2)-1=3, (3^3)+1=10, (4^4)-1=15, similarly (6^6)-1=35 )
