Quantitative- IDBI Bank PO

Quantitative- IDBI Bank PO
Question:-
Option (A)
213
Option (B)
226
Option (C)
210
Option (D)
228
Correct Option:
C
Question Solution:
By adding and subtracting alternatively 7, 11, 13, 17, 19 (all prime nos.)
we get the next term. In place of 210, it should be 209
Question:-
Option (A)
124
Option (B)
64
Option (C)
245
Option (D)
35
Correct Option:
D
Question Solution:
488, 245, 124, 64, 35, 20.25
((488 + 2) /2) = 245 , ((245 + 3) / 2) = 124, ((124 + 4) / 2) = 64,
((64 + 5) / 2) = 34.5, ((34.5 + 6) / 2) = (40.5 / 2) = 20.25
In place of 35, it should be 34.5
Question:-
Option (A)
712
Option (B)
837
Option (C)
901
Option (D)
None of these
Correct Option:
D
Question Solution:
Add 73, 63, 53, 43, 33 to get the next term
495 is wrong, it should be 496
Question:-
Option (A)
25 metres/second
Option (B)
20 metres/second
Option (C)
22 metres/second
Option (D)
Cannot be determined
Correct Option:
D
Question Solution:
Length of platform is not given Speed of train
= (Length of train Length of platform / Time taken)
Question:-
Option (A)
8
Option (B)
6.5
Option (C)
5
Option (D)
12
Correct Option:
A
Question Solution:
C.I. = P [{1 + (R/100)}n - 1]
\ 3895.68 = 15000 [{1+(R/100)}3 - 1] Þ R = 8
Question:-
Option (A)
55
Option (B)
13
Option (C)
212
Option (D)
22
Correct Option:
A
Question Solution:
14 × 1 – 12 = 13, 13 × 2 – 22 = 22, 22 × 3 –32 = 57,
57 × 4 – 42 = 212, 212 × 5 – 52 = 1035
55 is wrong, it should be 57