Dear Aspirants, Our IBPS Guide team is providing new series of Quantitative Aptitude Questions for IBPS RRB PO Prelims 2019 so the aspirants can practice it on a daily basis. These questions are framed by our skilled experts after understanding your needs thoroughly. Aspirants can practice these new series questions daily to familiarize with the exact exam pattern and make your preparation effective.
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[WpProQuiz 6515]
Directions (Q. 1 – 5): What value should come in place of question mark (?) in the following number series?
1) 1290, 645, 430, ? , 258, 215
a) 322.5
b) 356
c) 334
d) 342.5
e) 308
2) 218, 270, 333, 409, 500, ?
a) 712
b) 686
c) 730
d) 608
e) 654
3) 52, 274, 404, 472, 502, ?
a) 536
b) 512
c) 554
d) 580
e) 608
4) 11, 22, 66, ? , 2310, 25410
a) 360
b) 420
c) 330
d) 450
e) 480
5) 126, 64, 72, 171, ? , 6109
a) 652
b) 576
c) 924
d) 1032
e)748
Directions (Q. 6 – 10): Study the following information carefully and answer the given questions:
The following table shows the total population of 5 different villages and the ratio of males to females among them.
6) Find the ratio between the total female population in village A to that of village C?
a) 5 : 6
b) 7 : 8
c) 1 : 2
d) 3 : 4
e) None of these
7)Total population in village B and C together is what percentage of total population in village D and E together?
a) 72 %
b) 76 %
c) 84 %
d) 88 %
e) None of these
8) Find the difference between the total population in village A to that of total male population in village B and E together?
a) 34000
b) 38000
c) 42000
d) 46000
e) None of these
9) Find the average male population in village B, C and E together?
a) 58000
b) 60000
c) 64000
d) 56000
e) None of these
10) Find the difference between the average male population of village B, C and E together to that of the average female population of village A, C and E together?
a)14000
b) 10000
c) 16000
d) 12000
e) None of these
Answers:
Directions (1-5):
1) Answer: a)
1290*(1/2) = 645
645*(2/3) = 430
430*(3/4) = 322.5
322.5*(4/5) = 258
258*(5/6) = 215
2) Answer: d)
The difference of difference is, 11, 13, 15, 17,…
3) Answer: b)
52 + 63 + 6 = 274
274 + 53 + 5 = 404
404 + 43 + 4 = 472
472 + 33 + 3 = 502
502 + 23 + 2 = 512
4) Answer: c)
1*2 = 22
22*3 = 66
66*5 = 330
330*7 = 2310
2310*11 = 25410
5) Answer: e)
126*0.5 + 13 = 64
64*1 + 23 = 72
72*2 + 33 = 171
171*4 +43 = 748
748*8 + 53 = 6109
Directions (6-10):
6) Answer: d)
The total female population in village A
= >80000*(9/20) = 36000
The total female population in village C
= >120000*(2/5) = 48000
Required ratio = 36000 : 48000 = 3 : 4
7) Answer: c)
Total population in village B and C together
= >90000 + 120000 = 210000
Total population in village D and E together
= >100000 + 150000 = 250000
Required % = (210000/250000)*100 = 84 %
8) Answer: a)
The total population in village A = 80000
The total male population in village B and E together
= >[90000*(2/5)] + [150000*(13/25)]
= >36000 + 78000 = 114000
Required difference = 114000 – 80000 = 34000
9) Answer: e)
The average male population in village B, C and E together
= >[90000*(2/5) + 120000*(3/5) + 150000*(13/25)]/3
= > [36000 + 72000 + 78000]/3
= > 62000
10) Answer: b)
The average male population of village B, C and E together
= >[90000*(2/5) + 120000*(3/5) + 150000*(13/25)]/3
= > [36000 + 72000 + 78000]/3
= > 62000
The average female population of village A, C and E together
= >[80000*(9/20) + 120000*(2/5) + 150000*(12/25)]/3
= > [36000 + 48000 + 72000]/3
= > 52000
Required difference = 62000 – 52000 = 10000
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