2021 Number, Ranking & Time Sequence Test PDF

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Question of number ranking....

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Number and Ranking

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Number and Ranking

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1. How many such 5s are there in the following number sequence each of which is immediately preceded by 3 or 4 but not immediately followed by 8 or 9? 3 5 9 5 4 5 5 3 5 8 4 5 6 7 3 5 7 5 5 4 5 2 3 5 1 0 (a) None (b) Three (c) Five (d) N.T. Ans. (d) five 2. The positions of the first and the second digits in the number 94316875 are interchanged. Similarly, the positions of the third and fourth digits are interchanged and so on. Which of the following will be the third to the left of the seventh digit from the left end after the rearrangement? (a) 1 (b) 4 (c) 6 (d) N.T. Ans. (d) None of these. 3. How many such pairs of digits are there in the number 531268947 each of which has as many digits between them in the number as when they are arranged in descending order? (a) None (b) One (c) Two (d) More than three Ans. (d) More than three 4. If it is possible to from a number with the second, the fifth and eighth digits of the number 31549786, which is the perfect square of a two – digit even number, which of the following will be the second digit of that even number? (a) (b) 4 (c) 6 (d) N.T. Ans: (b) 4 5. If 3 is subtracted from the middle digit of each of the following numbers and then the positions of the digits are reversed, which of the following will be the last digit of the middle number after they are arranged in descending order? 589 362 554 371 442 (a) 1 (b) 2 (c) 3 (d) 4 Ans: (c) 3 6. How many 5s are there in the following number sequence which are immediately preceded by 7 and immediately followed by 6 ? 7 5 5 9 4 5 7 6 4 5 9 8 7 5 6 7 6 4 3 2 5 6 7 8 (a) None (b) Three (c) Five (d) N.T. Ans. (a) None 7. How many 6s are there in the following number series each of which is immediately preceded by 1 or 5 and immediately followed by 3 or 9? 2 6 3 7 5 6 4 2 9 6 1 3 4 1 6 3 9 1 5 6 9 2 3 1 6 5 4 3 2 1 9 6 7 1 6 3 (a) None (b) Three (c) Five (d) N.T. Ans. (a) None 8. 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 (a) One (b) Two (c) Four (d) Six Ans. (b) Two 9. In the series given below, count the number of 9s, each of which is not immediately preceded by 5 but is immediately followed by either 2 or 3. How many such 9s are there? 1 9 2 6 5 9 3 8 3 9 3 2 5 9 2 9 3 4 8 2 6 9 8 (a) One (b) Three (c) Five (d) Six Ans: (b) Three 10. How many 4’s are there preceded by 7 but not followed by 3? 5 9 3 2 1 7 4 2 6 9 7 4 6 132874138325674395820187463 (a) Three (b) Four (c) Five (d) Six Ans : (b) Four H.O. STAR EDUCATION CENTER NEAR ABIDIN MEDICAL CENTER, 161/13, JOGA BAI, JAMIA NAGAR,N.D- 25 Help lines: 011-26988200 9716 70 7001 Web- www.thestareducation.com Email: [email protected] P-2

Since 2002 11. If the following series is written in the reverse order, which number will be fourth to the right of the seventh number from the left? 7, 3, 9, 7, 0, 3, 8, 4, 6, 2, 1, 0, 5, 11, 13 (a) 0 (b) 5 (c) 9 (d) 11 Ans : (a) 0 12. In the following sequence of instructions, 1 stands for Run, 2 stands for Stop, 3 stands for Go, 4 stands for Sit and 5 stands for Wait. If the sequence were continued, which instruction will come next? 4 4 5 4 5 3 4 5 3 1 4 5 3 1 2 4 5 4 5 3 4 5 3 (a) Wait (b) Sit (c) Go (d) Run Ans: (d) Run 13. The positions of how many digits in the number 321465987 will remain same when the digits are arranged in ascending order? (a) None (b) One (c) Two (d) Three Ans : (d) Three 14. How many times will you write even numerals if you write all the numbers from 291 to 300? (a) 11 (b) 13 (c) 15 (d) 17 Ans: (b) 13 Study the number series given below and answer the questions that follows: 15. 7 8 9 7 6 5 3 4 2 8 9 7 2 4 5 5 9 2 9 (i) How many 7s are preceded by 9 and followed by 6? (a) 2 (b) 3 (c) 4 (d) 5 Ans : (a) 2 (ii)Which figures have equal frequency? (a) 2, 5, 3 (b) 2, 4, 5 (c) 3, 7, 5 (d) 8, 6, 5 Ans : (d) 8, 6, 5 16. How many combinations two – digit numbers having 8 can be made from the following numbers? 8, 5, 2, 1, 7, 6 (a) 9 (b) 10 (c) 11 (d) 12 Ans : (c) 11 17. In the numbers from 100 to 1000, how many times digit 1 comes at the ten’s place? (a) 9 (b) 10 (c) 90 (d) 900 Ans : (c) 90 18. What will be the difference between the sum of the odd digits and the sum of the even digits in the number 857423? (a) 0 (b) 1 (c) 2 (d) 4 Ans : (b) 1 19. How many numbers from 11 to 50 are there which are exactly divisible by 7 but not by 3? (a) Two (b) Four (c) Five (d) Six Ans : (b) Four 20. How many such pairs of digits are there in the number 95137248 each of which has as many digits between them in the number as when they are arranged in ascending order? (a) None (b) One (c) Two (d) Three Ans : (d) Three

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RANKING TEST Since 2002 21. Rohan ranks seventh from the top and twenty – sixth from the bottom in a class. How many students are there in the class? (a) 31 (b) 32 (c) 33 (d) 34 Ans : (b) 32 22. Manik is fourteenth from the right end in a row of 40 boys. What is the position from the left end? (a) 24th (b) 25th (c) 26th (d) 27th Ans : (d) 27th 23. In a row of boys facing the North, A is sixteenth from the left end C is sixteenth from the right end. B, who is fourth to the right of A, is fifth to the left of C in the row. How many boys are there in the row? (a) 39 (b) 40 (c) 41 (d) 42 Ans : (b) 40 24. In a row of 40 girls, when Komal was shifted to her left by 4 places her number from the left end of the row became 10. What was the number of Sawati from the right end of the row if Swati was three places to the right of Komal’s original position? (a) 23 (b) 25 (c) 26 (d) N.T. Ans : (d) None of these 25. Aman is the 16th from the left end in a row of boys and Vivek is 18th from the right end. Gagan is 11th from Aman towards the right and 3rd from Vivek towards the right end. How many boys are there in the row? (a) 40 (b) 42 (c) 48 (d) N.T. Ans : (d) N.T 26. Sam ranked ninth from the top and thirty – eighth from the bottom in a class. How many students aree there are in the class? (a) 45 (b) 46 (c) 47 (d) 48 Ans : (b) 46 27. A class of boys stands in a single line. One boy is nineteenth in order from both the ends. How many boys are there in the class? (a) 27 (b) 37 (c) 38 (d) 39 Ans : (b) 37 28. In a row of boys, Jeeven is seventh from the start and eleventh from the end. In another row of boys, Vikas is tenth from the start and twelfth from the end. How many boys are there in both the rows together? (a) 36 (b) 37 (c) 39 (d) N.T Ans : (d) None of these 29. In a class of 60, where girls are twice that of boys, Kamal ranked seventeenth from the top. If there are 9 girls ahead of Kamal, how many boys are after him in rank? (a) 18 (b) 19 (c) 31 (d) 32 Ans : (d) 32 30. In a row of boys, A is thirteenth from the left and D is seventeenth from the right. If in this row A is eleventh from the right then what is the position of D from the left? (a) 6th (b) 7th (c) 10th (d) 12th Ans : (b) 7th 31. In a row of boys, A is fifteenth from the left and B is fourth from the right. There are three boys between A and B. C is just left of A. What is C’s position from the right? (a) 9th (b) 10th (c) 12th (d) 13th Ans : (a) 9th 32. Rohit is seventeenth from the left end of row of 29 boys and Karan is seventeenth from the right end in the same row. How many boys are there between them in the row? (a) 3 (b) 5 (c) 6 (d) N.T Ans: (a) 3 H.O. STAR EDUCATION CENTER NEAR ABIDIN MEDICAL CENTER, 161/13, JOGA BAI, JAMIA NAGAR,N.D- 25 Help lines: 011-26988200 9716 70 7001 Web- www.thestareducation.com Email: [email protected] P-4

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