Number, Ranking and Time Sequence Test Questions and Answers

Q: What should come next in the following number series? 9 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 7 6 5 4 3 2 1

Correct answer: 6The series counts down to 1 and then starts again one lower each time: 9 to 1, then 8 to 1, then 7 to 1. The next block therefore begins at 6.

Q: Which of the following is fifth to the right of the twelth digit from the right end of the below arrangement? 1 8 5 9 4 7 1 2 5 8 3 6 5 9 2 7 6 4 5 2 9 2 6 4 1 2 3 5 1 4 2 8 3

Correct answer: 3The arrangement holds 33 digits, so the twelfth from the right end is the \( 33-12+1 = 22 \)nd from the left, which is 2. Counting five places to its right lands on the 27th digit, 3.

Q: In the English alphabet, which letter is 13th from right end?

Correct answer: NThere are 26 letters, so the 13th from the right end is the \[ 26 - 13 + 1 = 14 \text{th from the left} \] which is N.

Q: Hitesh, Sunny, Vicky, Nitin and Bharat are arranged in ascending order of the height from the top. Hitesh is at third place. Bharat is between Nitin andHitesh while Nitin is not at the bottom. Who has the maximum height among them?

Correct answer: NitinHitesh is third, Bharat lies between Nitin and Hitesh, and Nitin is not at the bottom - which leaves only one arrangement, with Nitin at the head of it. So Nitin is the tallest.

Q: Sanjeev ranks seventh from the top and twenty eighth from the bottom in a class. How many students are there in the class?

Correct answer: 34Sanjeev is counted from both ends, so the class holds \[ 7 + 28 - 1 = \mathbf{34} \] students.

Q: A bus for Shiridi leaves after every fifty two minutes from a bus stand. An enquiry officer told a passenger that the bus had already left sixteen minutes ago and the next bus will leave at 08:15 p.m. At what time did the enquiry officer give the information to the passenger?

Correct answer: 07:39 p.mBuses leave every 52 minutes, so the one before the 8:15 bus left at \( 8{:}15 - 52\text{ min} = 7{:}23 \). That bus had gone sixteen minutes earlier, which puts the conversation at \[ 7{:}23 + 16\text{ min} = \mathbf{7{:}39\ p.m.} \]

Q: How many 3’s are there in the following sequence which is neither preceded by nor immediately followed by 9? 9 3 6 6 3 9 5 9 3 7 8 9 1 6 3 9 6 3 9

Correct answer: None of theseEvery 3 in the list either has a 9 immediately before it or a 9 immediately after it: the 3s at the second, fifth, ninth, fifteenth and eighteenth places are all disqualified on one count or the other. Not one of them survives both tests, so the answer is none of these - there are no such 3s at all.

Q: A gets more marks than B but less than C. D gets less marks than E but more than A. If C gets less than D then who amongst A, B, C, D, E gets the highest marks?

Correct answer: EPutting the comparisons together: \( \mathrm{C} > \mathrm{A} > \mathrm{B} \), \( \mathrm{D} > \mathrm{A} \), \( \mathrm{E} > \mathrm{D} \) and \( \mathrm{D} > \mathrm{C} \). So the order is \[ \mathrm{E} > \mathrm{D} > \mathrm{C} > \mathrm{A} > \mathrm{B} \] and E has the highest marks.

Important Instructions

91.

If the positions of the first and the third digit within each number are interchanged, which of the following will be the third digit of the second lowest number ?

987, 514, 658, 487, 404, 269

Answer: D

According to the question, after the position of the first and third digit interchanged new numbers are
789, 415, 856, 784, 404, 962

962, 856, 789, 784, 404, 415
Here the second lowest number is 404 and the last digit of it is '4'.

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92.

What should come next in the following number series?

9 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 7 6 5 4 3 2 1

Answer: D

Correct answer: 6

The series counts down to 1 and then starts again one lower each time: 9 to 1, then 8 to 1, then 7 to 1. The next block therefore begins at 6.

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93.

Which of the following is fifth to the right of the twelth digit from the right end of the below arrangement?

1 8 5 9 4 7 1 2 5 8 3 6 5 9 2 7 6 4 5 2 9 2 6 4 1 2 3 5 1 4 2 8 3

Answer: A

Correct answer: 3

The arrangement holds 33 digits, so the twelfth from the right end is the \( 33-12+1 = 22 \)nd from the left, which is 2. Counting five places to its right lands on the 27th digit, 3.

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94.

In the English alphabet, which letter is 13th from right end?

Answer: C

Correct answer: N

There are 26 letters, so the 13th from the right end is the \[ 26 - 13 + 1 = 14 \text{th from the left} \] which is N.

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95.

Hitesh, Sunny, Vicky, Nitin and Bharat are arranged in ascending order of the height from the top. Hitesh is at third place. Bharat is between Nitin andHitesh while Nitin is not at the bottom. Who has the maximum height among them?

A.Hitesh
B.Sunny
C.Vicky
D.Nitin

Answer: D

Correct answer: Nitin

Hitesh is third, Bharat lies between Nitin and Hitesh, and Nitin is not at the bottom - which leaves only one arrangement, with Nitin at the head of it. So Nitin is the tallest.

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96.

Sanjeev ranks seventh from the top and twenty eighth from the bottom in a class. How many students are there in the class?

A.33
B.36
C.35
D.34

Answer: D

Correct answer: 34

Sanjeev is counted from both ends, so the class holds \[ 7 + 28 - 1 = \mathbf{34} \] students.

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97.

A bus for Shiridi leaves after every fifty two minutes from a bus stand. An enquiry officer told a passenger that the bus had already left sixteen minutes ago and the next bus will leave at 08:15 p.m. At what time did the enquiry officer give the information to the passenger?

A.07:23 p.m
B.06:25 p.m
C.07:39 p.m
D.06:23 p.m

Answer: C

Correct answer: 07:39 p.m

Buses leave every 52 minutes, so the one before the 8:15 bus left at \( 8{:}15 - 52\text{ min} = 7{:}23 \). That bus had gone sixteen minutes earlier, which puts the conversation at \[ 7{:}23 + 16\text{ min} = \mathbf{7{:}39\ p.m.} \]

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98.

How many 3’s are there in the following sequence which is neither preceded by nor immediately followed by 9?

9 3 6 6 3 9 5 9 3 7 8 9 1 6 3 9 6 3 9

A.One
B.Two
C.Three
D.None of these

Answer: D

Correct answer: None of these

Every 3 in the list either has a 9 immediately before it or a 9 immediately after it: the 3s at the second, fifth, ninth, fifteenth and eighteenth places are all disqualified on one count or the other. Not one of them survives both tests, so the answer is none of these - there are no such 3s at all.

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99.

A gets more marks than B but less than C. D gets less marks than E but more than A. If C gets less than D then who amongst A, B, C, D, E gets the highest marks?

Answer: C

Correct answer: E

Putting the comparisons together: \( \mathrm{C} > \mathrm{A} > \mathrm{B} \), \( \mathrm{D} > \mathrm{A} \), \( \mathrm{E} > \mathrm{D} \) and \( \mathrm{D} > \mathrm{C} \). So the order is \[ \mathrm{E} > \mathrm{D} > \mathrm{C} > \mathrm{A} > \mathrm{B} \] and E has the highest marks.

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100.

Satish remembers that his brother’s birthday is after fifteenth but before eighteenth of February whereas his sister Kajal remembers that her brother’s birthday is after sixteenth but below nineteenth of February. On which day in February is Satish’s brother’s birthday?

A.16th
B.17th
C.18th
D.19th

Answer: B

According to Satish, the brother’s birthday is on one of the days among 16th and 17th February.

According to Kajal, the brother’s birthday is on one of the days among 17th and 18th February.

Clearly, Satish’s brother’s birthday is on the day common to both the above groups, i.e., 17th February.

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