Friday, 2 December 2011

Reasoning Practice test - 7 for Clerk exam With Explanation

1. How many 9s are there in the following number sequence which are immediately preceded by 7 and also immediately followed by 8 ?
7 9 7 2 3 7 9 8 6 5 7 9 8 2 8 8 9 7 4 9 7 8 8 8
(1) 1
(2) 2
(3) 3
(4) 4
(5) None of these

2. How many 6s are there in the following number series which are immediately either preceded by 4 or followed
by 7 ?
3 1 2 9 6 4 7 6 4 6 7 2 9 7 6 4 4 6 7
(1) One
(2) Two
(3) Three
(4) Four
(5) Five

3. In the following series of numbers how many times have the numbers 9, 1 and 8 appeared together, 1 in the middle and 9 and 8 being on either side of 1?
2 1 9 8 1 9 8 3 7 1 9 7 8 1 2 9 1 9 8 1 8 2 1 2

(1) One
(2) Six
(3) Three
(4) Four
(5) None of these

4. How many 1s are there in the following sequence which are immediately preceded by 9 but not immediately followed by 7 ?
7 1 9 1 1 7 1 8 9 1 7 1 2 1 3 1 4 5 7 1 3 9 1 7
(1) One
(2) Two
(3) Three
(4) Four
(5) None of these

5. How many 7s immediately preceded by 6 but not immediately followed by 4 are there in the following series?
7 4 2 7 6 4 3 6 7 5 3 5 7 8 4 3 7 6 7 2 4 0 6 7 4 3
(1) One
(2) Two
(3) Four
(4) Six
(5) None of these


6. In the given series how many instances are there in which an even number is followed by two odd numbers?
1 8 5 7 2 9 8 4 3 6 2 7 5 1 8 9 4 3 6 5 9
(1) Nil
(2) One
(3) Two
(4) Three
(5) None of these


7. Ajay’s position in a row is thirteenth from the front side and sixth from the back side. How many persons are standing in that row?
(1) 17
(2) 18
(3) 19
(4) 20
(5) 21

8. Ratan ranked 8th from the top and 37th from the bottom in a class. How many students are there in the class?
(1) 44
(2) 46
(3) 45
(4) 48
(5) None of these


9. In a row of boys Ganesh is twelfth from left and Rajan is fifteenth from right. When they interchange their positions, Rajan becomes twentieth from right. How
many boys are there in the row?
(1) 29
(2) 31
(3) 32
(4) 30
(5) None of these


10. In a row of 16 boys when Ram was shifted by two places towards left, he became 7th from the left end. What was his earlier position from the right end of the
row?
(1) 7th
(2) 8th
(3) 9th
(4) 10th
(5) None of these


11. Hari ranks sixteenth in a class of thirty. What is his rank from the last?
(1) 13
(2) 15
(3) 16
(4) 17
(5) None of these

12. The Managing Director entered the conference room ten minutes before 12.30 hrs for interviewing. He came 20 minutes before the Chairman who was 30 minutes
late. At what time, were the interviews scheduled?
(1) 12.50
(2) 12.40
(3) 12.20
(4) 12.10
(5) 12.50

13. A bus for Bangalore leaves every thirty minutes from a bustand. An enquiry clerk told a passanger that a bus had already left ten minutes ago and the next bus will leave at 9.35 am. At what time did the enquiry clerk give this information to the passenger?
(1) 9.10 am
(2) 8.55 am
(3) 9.08 am
(4) 9.05 am
(5) 9.15 am

14. How many days will there be from 26th January, 1988 to 15th May 1988 ? (both days included)
(1) 110
(2) 111
(3) 112
(4) 113
(5) None of these


15. Raji remembers that Latha’s birthday is after 19th but before 22nd November, whereas Deepthi remembers that Latha’s birthday is after 20th but before 24th November. On which day is Latha’s birthday?
(1) 20thNovember
(2) 21st November
(3) 22nd November
(4) 23rd November
(5) None of these


Explanatory Answers:



1. (2) 7 9 7 2 3 7 9 8 6 5 7 9 8 2 8 8 9 7 4 9 7 8 8 8


2. (4) 3 1 2 9 6 4 7 6 4 6 7 2 9 7 6 4 4 7


3. (1) 2 1 9 8 1 9 8 3 7 1 9 7 8 1 2 9 1 9 8 1 8 2 1 2


4. (1) 7 1 9 1 1 7 1 8 9 1 7 1 2 1 3 1 4 5 7 1 3 9 1 7


5. (2) 7 4 2 7 6 4 3 6 7 5 5 3 5 7 8 4 3 7 6 7 2 4 0 6 7 4 3


6. (4) 1 8 5 7 2 9 8 4 3 6 2 7 5 1 8 9 4 3 6 5 9


7. (2) Number of persons in that row = 12 + 1 + 5 = 18


8. (1) Number of students in the class = 7 + 1 + 36 = 44


9. (2) After interchanging Rajan becomes twentieth from right i.e. earlier Ganesh was twentieth from right and twelfth from left. So the number of boys in the row = 11 + 1 + 19 = 31


10. (2) After shifting Ram becomes 7th from left means his earlier position was 9th from left i.e. 16 - 9 + 1 = 8th from right.


11. (2) Hari’s rank from the last = 30 - 16 + 1 = 15


12. (4) Clearly the Managing Director came at 12.20. Thus the Chairman came at 12.40. Since the Chairman was late by 30 minutes, the interviews were scheduled to be held at 12.10.


13. (5) The bus will leave 20 minutes after the clerk gives the information to the passanger and at 9.35 a.m. He gave the information 20 minutes before 9.35
a.m. i.e. at 9.15 a.m.


14. (2) Number of days = (6 + 29 + 31 + 30 + 15) = 111. Since 1988 is a leap years, the number of days in February = 29.


15. (2) According to Raji, Latha’s birthday is on one of the days among 20th and 21st November. According to Deepti, Latha’s birthday is on one of the days among 21st, 22nd and 23rd November.  The day common to both the groups is 21st November. ... Latha’s birthday is on 21st November

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