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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