In this post, you will be taught how to solve Number and Ranking test problems in reasoning.
In almost all the Objective Type Multiple Choices Examinations a few questions on Number and Ranking Test are asked regularly.
Such questions consists a set, group or series of numerals and candidate is asked to trace out numerals following certain given conditions or lying at defined position. There is no rule as how to attempt these questions in exams but we can practice these questions.Questions
DIRECTIONS (Q. 1-5) : Study the following arrangement carefully and answer the questions given below:
4 2 6 1 3 8 9 5 8 1 6 5 1 5 8 5 3 9 4 9 2 3 2 1 5 7 2 6 2 4 2 7 4
1. If all the even digits are deleted from the above arrangement, which of the following will be seventh from the right end of the arrangement?
(a) 3
(b) 5
(c) 1
(d) 9
(e) 7
2. How many such 2s are there in the above arrangement each of which is immediately preceded by an odd digit and also immediately followed by an odd digit?
(a) None
(b) One
(c) Two
(d) Three
(e) More than three
3. How many such 1s are there in the above arrangement, each of which is immediately preceded by a perfect square?
(a) None
(b) One
(c) Two
(d) Three
(e) More than three
4. If one is added to each of the even digits and two is added to each of the odd digits given in BOLD in the above arrangement, how many digits will appear twice in the new number thus formed?
(a) None
(b) One
(c) Two
(d) Three
(e) More than three
5. Which of the following is seventh to the right of the nineteenth digit from the right end of the above arrangement?
(a) 3
(b) 5
(c) 1
(d) 7
(e) None of these
6. Pratap correctly remembers that his mother's birthday is before twenty-third April but after nineteenth April, whereas his sister correctly remembers that their mother's birthday is not on or after twenty-second April. On which day in April is definitely their mother's birthday?
(a) Twentieth
(b) Twenty-first
(c) Twentieth or Twentyfirst
(d) Cannot be determined
(e) None of these
7. In a row of forty children, R is eleventh from the right end and there are fifteen children between R and M. What is M's position from the left end of the row?
(a) Fourteenth
(b) Fifteenth
(c) Thirteenth
(d) Cannot be determined
(e) None of these
8. In a row of forty boys facing North, R is twelfth from the left end and T is eighteenth from the right end. How many boys are between R and T in the row?
(a) 10
(b) 11
(c) 12
(d) Cannot be determined
(e) None of these
9. Mohit correctly remembers that his father's birthday is not after eighteenth of April. His sister correctly remembers that their father's birthday is before twentieth but after seventeenth of April. On which day in April was definitely their father's birthday?
(a) Seventeenth
(b) Nineteenth
(c) Eighteenth
(d) Seventeenth or Eighteenth
(e) None of these
10. If it is possible to form only one such number with the third, the sixth and the seventh digits of the number 7394261 which is the perfect square of a two-digit odd number, which of the following will be the first digit of that two-digit odd number?
(a) 9
(b) 3
(c) 5
(d) No such number can be formed
(e) More than one such number can be formed
Answers
1. (d) 1 3 9 5 1 5 1 5 5 3 9 9 3 1 5 7 7
2. (c) 4 2 6 1 3 8 9 5 8 1 6 5 1 5 8 5 3 9 4 9 2 3 2 1 5 7 2 6 2 4 2 7 4
3. (a) 4 2 6 1 3 8 9 5 8 1 6 5 1 5 8 5 3 9 4 9 2 3 2 1 5 7 2 6 2 4 2 7 4
There are no such 1s.
4. (c) 5 3 7 3 5 9
Thus there are two digits — 5 and 3 — that appear twice.
5. (a) 7th to the right of 19th from the right. = (19 – 7 =) 12th from the right = 3
6. (c) According to Pratap: 20, 21 or 22 ...(i)
According to his sister: not 22 ...(ii)
From (i) and (ii), the birthday falls on Apr 20 or 21.
7. (a) R's position = 11th from right
= M's position = (11 + 15 + 1 = ) 27th from right = (40 – 27 + 1 =) 14th from left
8. (a) R = 12th from left
T = 18th from right = (40 – 18 + 1 = ) 23rd from left
= No. of boys between R and T = 23 – 12 – 1 = 10
9. (c) According to Mohit: Apr 18 or earlier ...(i)
According to his sister: April 18 or 19 ...(ii)
From (i) and (ii), we get Apr 18.
10. (e) 169, 196 and 961, which are the squares of 13, 14 and 31 respectively. Of these, 14 is ruled out because it is even. We are still left with two such numbers — 13 and 31.