If a2, b2, c2 are in arithmetic progression, then b + c, c + a and a + b are in :
arithmetic progression
geometric progression with common ratio > 1
geometric progression with common ratio < 1
harmonic progression
Directions: In these questions, a series is given which may consist of number, alphabets or a mixture of both. You have to identify from the choices given against each question, the next term in the series.
3,10,29,66,127?
164
187
218
216
Which combination of alphabets would come in the position of the question mark in the following sequence?
ABP, CDQ, EFR?
GHS
GHT
HGS
GHR
The sum of the series 1 + 1/2 +1/4+ 1/8 + 1/16 + …. 8 is:
2
4
8
8
If the sum of n terms of an arithmetic progression is 3n2 + 2n, what is the rth term?
6r + 1
6r – 1
3r + 1
3r – 1
Complete the series:
10, 18, 34, ??, 130, 258
32
60
68
66
Find out the right letters for the questions marks:
A MAB N E I F J C O D P G K?
MN
LM
IE
None of these
The sum of the series
12+ 22+ 32 + 42 +…..+ 152 is :
1080
1240
1460
1620
5: 7::? : 28
20
14
56
None of these
6, 15, 36, 75, ?
231
138
214
None of these