Tuesday, September 15, 2015

Quantitative Aptitude Quiz 2015 - Set 25 - Number Series and Mixed Problems


Hello and welcome to ExamPundit. Here is a set of Quantitative Aptitude Quiz for Bank Exams 2015.


Directions (Q. 1 - 5): In each of the following number series, a wrong number is given. Find out the wrong number.

1. 2, 6, 13, 26, 54, 100, 197
(a) 26
(b) 54
(c) 100
(d) 197
(e) 13





Solutions -2, 6, 13, 26, 54, 100, 197
Here 2 × 2 + 2 = 6;
6 × 2 + 1 = 13;
13 × 2 + 0 = 26;
26 × 2 – 1 = 54; → Wrong, it should be 51
51 × 2 – 2 = 100;
100 × 2 – 3 = 197 



2. 56, 57, 48, 73, 24, 105, –10
(a) 57
(b) 105
(c) 73
(d) –10
(e) 24





Solutions -56, 57, 48, 73, 24, 105, –10
Here, 56 + 12 = 57;
57 – 32 = 48;
48 + 52 = 73;
73 – 72 = 24;
24 + 92 = 105;
105 – 112 = –10; → Wrong, it should be –16 



3. 2, 2, 13, 59, 363, 2519, 20161
(a) 13
(b) 20161
(c) 2519
(d) 363
(e) 59





Solutions - 2, 2, 13, 59, 363, 2519, 20161
Here, 2 × 3 – 4 = 2;
2 × 4 + 5 = 13;
13 × 5 – 6 = 59;
59 × 6 + 7 = 363; → Wrong, it should be 361
361 × 7 – 8 = 2519;
2519 × 8 + 9 = 20161



4. 1, 8, 66, 460, 2758, 13785, 55146
(a) 460
(b) 2758
(c) 66
(d) 8
(e) 55146





Solutions - 1, 8, 66, 460, 2758, 13785,
55146
Here, 1 × 9 – 1 = 8;
8 × 8 + 2 = 66;
66 × 7 – 3 = 460; → Wrong, it should be 459
459 × 6 + 4 = 2758;
2758 × 5 – 5 = 13785;
13785 × 4 + 6 = 55146




5. 3, 1, 3, 0.7, 3, 0.6, 3, 0.5, 3
(a) 1
(b) 0.7
(c) 0.6
(d) 0.5
(e) 3





Solutions -3, 1, 3, 0.7, 3, 0.6, 3, 5, 3
Here,
3 × 1/3 = 1
1 × 3 = 3
3 × 1/4 = .70 → Wrong, it should be .75
0.75 × 4 = 3
3 × 1/5 = .6;
0.6 × 5 = 3
3 × 1/6 = .5
.5 × 6 = 3 



6. If 5 workers collect 60 kg wheat in 3 days. How many kilograms of wheat will 8 workers collect in 5 days?
(a) 80 kg
(b) 100 kg
(c) 120 kg
(d) 160 kg
(e) None of these





Solutions -



7. By how much is three-fourth of 52 lesser than two-third of 99?
(a) 27
(b) 33
(c) 39
(d) 66
(e) None of these





Solutions -



8. The average age of A, B and C is 26 years. if the average age of A and C is 29 years. what is the age of B (in years)?
(a) 26
(b) 20
(c) 29
(d) 23
(e) None of these





Solutions -



9. A sum of money is divided among A, B, C and D in the ratio of 3 : 5 : 8 : 9, respectively. If the share of D is Rs. 1872 more than the share of A, then what is the total amount of money of B and C together?
(a) Rs. 4156
(b) Rs. 4165
(c) Rs. 4056
(d) Rs. 4065
(e) None of these






Solutions -



10. Arun started a business investing Rs. 38000. After 5 months, Bakul joined him with a capital of Rs. 55000. At the end of the year the total profit was Rs. 22000. What is the approximate difference between the share of profit of Arun and Bakul?
(a) Rs. 1192
(b) Rs. 1856
(c) Rs. 1007
(d) Rs. 1928
(e) Rs. 1568





Solutions -




Regards




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