9th october 2018 IBPS PO Pre quant




Q1. Mani can complete a piece of work in 24 days while Shani can complete the same work in 16 days. They start working together and after working 8 days Mani increases its working efficiency by 50% while Shani reduces its working efficiency by 60%. In how many days the work will be completed?
8 (19/21)
9 (19/21)
1 (19/21)
11 (19/21)
can’t be determined
Solution:
Q2. Speed of a train is 350% more than that of a bus while 50% less than that of a car. If bus can cover a certain distance in 7 ½ hours, then what will be difference between time taken by train & car to cover 160% of the given distance?
1 hr 20 min
1 hr 50 min
2 hr 20 min
1 hr 40 min
None of these
Solution:


Q3. In a 96 litre mixture of milk and water, the ratio of water and milk is x : 5. A person mixes 12 litres of water in it. Now, ratio of milk to water becomes 5 : 4. Find the initial quantity of milk in the mixture.
45 ltr.
40 ltr.
60 ltr.
64 ltr.
42 ltr.
Solution:

Q4. In a rectangular park, there are 8 rows and each row can contain 16 trees (identical trees). If sides of park are 96 m and 72 m and diameter of each tree is 7/2 m then how much area of park will remain uncovered? (Assume all trees have circular base and extreme trees just touch the boundary of park. No tree touch each-other)
5860 m²
4680 m²
6580 m²
5680 m²
5480 m²
Solution:


Q5. Find the probability of being 53rd Monday in a leap year.
1/7
2/7
3/7
4/7
5/7
Solution:

Directions (6-10): The following line graph shows the total no. of deer and bear in six different states of India. 
Study the graph carefully and answer the following questions. 

Q6. Total no. of deer in Assam is what percent more/ less than total no. of deer in Gujarat ?
18 (13/17) %
17 (11/17) %
19%
21 (9/17) %
None of these
Solution:

Q7. What is the average no. of total bear in all the six states together?
825
950
850
770
None of these
Solution:
Q8. What is the difference between total no. of bear and total no. of deer in all the states together?
850
800
750
725
None of these
Solution:
Required difference
 =(1000+950+850+800+650+700)-(900+850+700+700+550+450)
= 4950 – 4150 = 800

Q9. The no. of deer in MP and Gujrat together is approximate what percent more or less than the no. of bear in the same states together?
4% more
12% less
10% less
8% less
14% less
Solution:

Q10. If number Of deer in Maharashtra is 10% more than that in Himanchal Pradesh, then what will be the ratio of no. of deer in Maharashtra to that of the deer in Gujrat?
99 : 170
170 : 99
133 : 140
211 : 95
None of these
Solution:

Directions (11-15): What will come in place of (?) in following number series ? 

Q11. 3, 6, 24, ? , 1152, 11520
192
144
96
168
148
Solution:
Pattern is ×2, ×4, ×6, ×8…
∴ ? = 24 × 6 = 144

Q12. 2, 9, 40.5, 182.25, ?
820.125
816.125
815.220
812.52
825.12
Solution:
Pattern is ×4.5, ×4.5, ×4.5, ×4.5, ….
∴ ? = 182.25 × 4.5
= 820.125

Q13. 342, 725, 1322, 2181, 3350, ?
4832
4864
4888
4877
4872
Solution:


Q14. 11, 24, 75, 304, 1525, ?
9157
10682
7630
9156
9165
Solution:
Pattern is ×2+2, ×3+3, ×4+4, ×5+5,….
∴ ? = 1525 × 6 + 6
= 9156

Q15. 1245, 1256, 1223, 1278, 1201, ?
1300
1102
1322
1344
1278
Solution:
Pattern is +11, –33, +55, –77, +99
∴ ? = 1201 + 99
= 1300

               

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