QUANT QUIZ FOR IBPS PO , RAILWAYS GROUP D & NTPC 2019

Directions (1-5): Table based DI

Village®	A		B		C
Year ¯	Total Votes	Valid votes	Total Votes	Valid votes	Total Votes	Valid votes
2000	2500	2250	8000	7600	4400	4250
2005	3800	3250	6250	5800	5000	4600
2010	3400	3000	5900	5400	6720	6750

Q1. What are the average invalid votes (approximate) for village A for the given years?

(a) 400

(b) 425

(c) 450

(d) 375

(e) 350

Q2. If total vote polled in village B in year 2000, 25% polled by females and total valid-female-votes are 1875 then find the number of valid votes polled by males?

(a) 5675

(b) 5825

(c) 5450

(d) 5950

(e) 5725

Q3. What is the average of valid votes polled in year 2000?

(a) 4750

(b) 4600

(c) 4850

(d) 4700

(e) 5150

Q4. Total votes of village A in 2000 is what percent of valid votes polled in village C in 2010?

(a) 29%

(b) 35%

(c) 37%

(d) 42%

(e) 44%

Q5. Valid votes polled in village C in 2005 is by what percent less than total votes polled in village B in 2000?

(a) 39.50%

(b) 42.50%

(c) 46.75%

(d) 41.25%

(e) 37.75%

S1. (a); Required average = (250 + 550 + 400) / 3 = 400

S2. (e); Votes polled by females = (25 / 100) × 8000 = 2000

Votes polled by males = 6000

Valid female votes = 1875

Valid male votes = 7600 − 1875 = 5725

S3. (d); Required average = (2250 + 7600 + 4250) / 3 = 4700

S4. (c); Required percentage = (2500 / 6750) × 100 ≈ 37%

S5. (b); Required percentage = [(8000 – 4600) / 8000] × 100 ≈ 42.5%

 

Directions (6-10): Missing Number Series

Q6. 11, 20, 38, 74, ?

(a) 146

(b) 152

(c) 158

(d) 162

(e) 176

Q7. 15, 21, 38, 65, 101, ?

(a) 134

(b) 145

(c) 126

(d) 152

(e) 166

Q8. 24, 28, 19, 35, 10, ?

(a) 7

(b) 18

(c) 26

(d) 46

(e) 55

Q9. 7, 16, 45, 184, 915, ?

(a) 2092

(b) 5496

(c) 1048

(d) 4038

(e) 3268

Q10. 12, 19, 35, 59, 90, ?

(a) 134

(b) 127

(c) 132

(d) 98

(e) 114

 

Solutions: (1-10)

S1. (a); Required average = (250 + 550 + 400) / 3 = 400

S2. (e); Votes polled by females = (25 / 100) × 8000 = 2000

Votes polled by males = 6000

Valid female votes = 1875

Valid male votes = 7600 − 1875 = 5725

S3. (d); Required average = (2250 + 7600 + 4250) / 3 = 4700

S4. (c); Required percentage = (2500 / 6750) × 100 ≈ 37%

S5. (b); Required percentage = [(8000 – 4600) / 8000] × 100 ≈ 42.5%

S6. (a); The pattern is +9, +18, +36, +72……..

So, 74 + 72 = 146

S7. (b); The pattern is +6, + 17, +27, +36, + 44. . . . . . . . ..

+11    +10    +9    +8

So, 101+ 44 = 145

S8. (d); The pattern is +2², −3², +4², −5² . . . . . . . . …

So, 10 + 6² = 46

S9. (b); The pattern is × 2+ 2, × 3 − 3, × 4+ 4, × 5 − 5. . . . . . . . . ..

So, 915 × 6 +6 = 5496

S10. (b); The pattern is +7, + 16, + 24, + 31, + 37

+9      +8     +7     +6

So, 90 + 37 = 127

 

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