21) 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}
View Answer
View Explanation
Ans. D
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}
22) 1,9,17,33,49,73,
View Answer
View Explanation
Ans. C
Explanation :
Pattern for the given series is, +8, +8, +16, +16, +24
So next will be +24, 73+24 = 97
23) 2,5,9,?,20,27, what will replace the question mark
View Answer
View Explanation
Ans. B
Explanation :
Pattern is +3,+4,..,..,+7, so +5 and +6 will be in the blanks
Question mark will be replaced by 9+5 = 14
24) 21,25,33,49,81
- 1) 140
- 2) 145
- 3) 147
- 4) 159
View Answer
View Explanation
Ans. B
Explanation :
Pattern is, +4, +8, +16, +32, so next will be +64
81+64 = 145
25) 5,9,17,29,45
View Answer
View Explanation
Ans. C
Explanation :
In this series the pattern is +4, +8, +12, +16, so next will be +20
Term which will replace the question mark in this series will be 45+20 = 65
26) 1,6,15,(...),45,66
View Answer
View Explanation
Ans. B
Explanation :
Pattern in the series is, +5, +9, .., .., +21, +25
So 4 is getting increased at every term addition.
Missing term in the series will be 15+(9+4)
= 15+13 = 28
27) Look at this series: 22, 21, 23, 22, 24, 23, ... What number should come ne
View Answer
View Explanation
Ans. A
Explanation :
Please look carefully at the series, its pattern is,
-1, +2, -1, +2, -1, so next will be +2
23+2 = 25
28) What number should come next in the series, 1, 2, 3, 5, 8
View Answer
View Explanation
Ans. D
Explanation :
In this series, each term is the sum of preceding two terms as,
1+2 = 3
3+2 = 5
5+3 = 8
Next term in the series will be,
8+5 = 13
29) 1, 2, 5, 12, 27, 58, 121
- 1) 248
- 2) 244
- 3) 198
- 4) 190
View Answer
View Explanation
Ans. A
Explanation :
Pattern in the series is *2+1, *2+2, *2+3,.....
Term which replaces the question mark in the series is
121 * 2 + 6 = 248
30) Complete the series, 3, 8, 13, 24, 41
View Answer
View Explanation
Ans. A
Explanation :
Pattern of the above series is
first + second + 2, second + third + 3, third + fourth + 4......
So next term will be
24 + 41 + 5 = 70