• #### 1. Complete the series 2,2,5, 13,28,....

1. 50
2. 51
3. 52
4. 53

Explanation:

\begin{aligned}
\text{Pattern is }\\
+1^2-1, +2^2-1, +3^2-1,+4^2-1 \\
5^2-1 = 28 + 24 \\
= 52
\end{aligned}

• #### 2. Which number would replace the question mark in series 7,12,19,?,39

1. 24
2. 28
3. 31
4. 33

Explanation:

Pattern is , +5, +7, +9
Missing Number = 19+9 = 28

• #### 3. Complete the series, 1, 4, 9, 16, 25,....

1. 36
2. 38
3. 49
4. 52

Explanation:

Series Pattern is +3, +5, +7, +9.

So next number = 25+11 = 36

• #### 4. Complete the series 20, 19, 17, ...., 10, 5

1. 15
2. 16
3. 13
4. 14

Explanation:

Pattern is, -1, -2, ..,.. , -5

So -3 and -4 will fill the blanks to make it a pattern.

Next number will be 17-3 = 14

• #### 5. 6, 11, 21, 36, 56, ? what will replace the question mark in the series ?

1. 75
2. 81
3. 85
4. 89

Explanation:

Pattern is +5, +10, + 15, +20

Next number in the series will be 56 + 25 = 81

• #### 6. Complete the series 1,6,13,22,33,...

1. 46
2. 48
3. 49
4. 51

Explanation:

Pattern is +5, +7, +9, +11
So next number will be +13
=> 33+13 = 46

• #### 7. Which fraction will come next, \begin{aligned} \frac{1}{2}, \frac{3}{4}, \frac{5}{8}, \frac{7}{16}, ? \end{aligned}

1. \begin{aligned} \frac{11}{32} \end{aligned}
2. \begin{aligned} \frac{9}{28} \end{aligned}
3. \begin{aligned} \frac{9}{30} \end{aligned}
4. \begin{aligned} \frac{9}{32} \end{aligned}

Explanation:

Numerators of the fractions in the given sequence are getting increased by 2, i.e. 1+2,3+2,5+2, so next will be 7+2 = 9

Denominators of the fractions in the series is getting doubled, 2*2 = 4, 4*2 = 8, 8*2 = 16, no next will be 16*2 = 32

So resulting fraction will be
\begin{aligned}
\frac{9}{32}
\end{aligned}

• #### zeeshan 4 years ago

14,7.5,8.5,14.25,30.50,?

• #### zeeshan 4 years ago

Completion the series
30,30,34,52,100,?

• #### zeeshan 4 years ago

90,50,60,105,230,?

• #### Pratheek 4 years ago

Complete the series: 9,81,90,810,819,?

its very important

• #### Sai 5 years ago

9,11,17,37,79,189,?
Complete the series

• #### Raghav 5 years ago

what will be the series

253,136,352,460,324,631,244.?

options are

A.136 B.324

C.352 D.631

#### Yashvanth kumar 4 years ago replied

9
9*9= 81+9 = 90*9 = 810+9 = 819*9 =73 71

#### Chan Doraemi 4 years ago replied

7371 as 9*9=81
81+9=90
90*9=810
810+9=819
819*9=7371

#### Chan Doraemi 4 years ago replied

7371 as 9*9=81
81+9=90
90*9=810
810+9=819
819*9=7371

• #### ALI 6 years ago

PLZ COMPLETE THE SERIES
5,12,?,54,110

5*2+2=12
12*2+2=26
26*2+2=54

• #### Ali Yaqoob 7 years ago

what will come next in series M T W T F S?
options: T S W F

• #### Khushbu Mehta 7 years ago

series comletion
60,30,20,15, ? ?

#### mastguru 7 years ago replied

60,
1/2(60) = 30,
1/3(60) = 20,
1/4(60) = 15,
1/5(60) = 12,
1/6(60) = 10..

So it will be 60, 30, 20, 15, 12, 10.

• #### Sourav 7 years ago

series completion
18,46,94,63,52,61,?
What will replace the ?

#### Guest 7 years ago replied

reverse all the number those are nothing but squares.
18 is 81 which is 9^2, 46 is 64 that is 8^2 and so on.... so next number is 90 which 3^2 that is 09.

#### varun 7 years ago replied

And. 108 because add both digit sum is nine this no. Is repetitive after two no. So my answer is 108. 1+8=9;4+6=10 9+4=13;6+3=9;5+2=7;6+1=7;1+0+8=9.

• #### Sourav 7 years ago

Series completion
18, 46, 94, 63, 52, 61,?
What will be in place of ?

if 9=4
21=9
10=3
and
3=?

#### mastguru 7 years ago replied

9 (nine) has four characters = 4
21(twenty one) has nine characters = 9
10(ten) has three characters = 3
3(three) has five characters = 5

#### abhiram 5 years ago replied

10,because already in problem 10=3 then 3=10...

if 9=4
21=9
10=3
and
3=?

• #### DEEPAK 8 years ago

SERIES COMPLETION 3,5,12 ,?AND 3,5,21,? BUT L.C.M OF THESE NUMBERS ARE SAME

#### mastguru 8 years ago replied

Hello Deepak..
LCM of 3,5,12 will be 60
LCM of 3,5,21 will be 105

So it will be different.

#### mastguru 8 years ago replied

Hello Deepak,