Number, Ranking and Time Sequence Test Questions and Answers

Q: Sangeeta remembers that her father’s birthday was certainly after eighth but before thirteenth of December. Her sister Natasha remembers that their father’s birthday was definitely after ninth but before fourteenth of December. On which date of December was their father’s birthday?

Correct answer: Data inadequateSangeeta allows the 9th to the 12th and Natasha the 10th to the 13th. Three dates - the 10th, 11th and 12th - satisfy both, so the birthday cannot be pinned down: the data are inadequate.

Q: Read the arrangement carefully and give the answer of following questions ? K$23DBE8HM4@5JF4%K1+WR#AA*415 How many such symbols are there which is not immediately preceded by a letter but immediately followed by a number ?

Correct answer: 1Going along the arrangement and keeping only those symbols that have a letter after them but not before them, exactly one qualifies; every other symbol fails one of the two tests.

Q: Which is the third number to the left of the number which is exactly in the middle of the following sequence of numbers? 1 2 3 4 5 6 7 8 9 2 4 6 8 9 7 5 3 1 9 8 7 6 5 4 3 2 1

Correct answer: 4The sequence holds 27 numbers, so the middle one is the 14th, which is 9. Three places to its left is the 11th number, 4.

Q: A class of boys stands in a single line, One boy is 19th in order from both the ends, How many boys are there in the class ?

Correct answer: 37The boy is counted from both ends, so the class holds \[ 19 + 19 - 1 = \mathbf{37} \] boys.

Q: Ravi is 7 ranks ahead of Sumit in a class of 39. If Sumit’s rank is seventeenth from the last, what is Ravi’s rank from the start?

Correct answer: 16thSumit is 17th from the last in a class of 39, so he is $ 39 - 17 + 1 = 23 $rd from the start. Ravi is seven ranks ahead of him: \[ 23 - 7 = \mathbf{16} \text{th} \]

Q: If the 30th january 2003 was thursday, what was the day day on 2nd march, 2003?

Correct answer: sunday31 January is the day after Thursday, a Friday. February 2003 had 28 days - exactly four weeks - so 28 February was also a Friday. 1 March is then Saturday and 2 March Sunday.

Q: Count each 7 which is not immediately preceded by 5 but is immediately followed by either 2 or 3. How many such 7’s are there? 5 7 2 6 5 7 3 8 3 7 3 2 5 7 2 7 3 4 8 2 6 7 8

Correct answer: 2Two 7s qualify: the one in 3 7 3, which is preceded by 3 and followed by 3, and the one in 2 7 3. The 7s in 5 7 2 and 5 7 3 are ruled out by the 5 before them, and the last 7 is followed by 8. So there are 2.

Q: If it is possible to make a number which is the square of a two-digit odd number using the second, the fourth and the sixth digits of the number 93217648 and using each only once, which of the following is that two-digit odd number?

Correct answer: 19The second, fourth and sixth digits of 93217648 are 3, 1 and 6. Arranged as 361 they give $ 19^2 $, and 19 is a two-digit odd number - so the number whose square can be formed is 19.

Important Instructions

81.

Sangeeta remembers that her father’s birthday was certainly after eighth but before thirteenth of December. Her sister Natasha remembers that their father’s birthday was definitely after ninth but before fourteenth of December. On which date of December was their father’s birthday?

A.10th
B.11th
C.12th
D.Data inadequate

Answer: D

Correct answer: Data inadequate

Sangeeta allows the 9th to the 12th and Natasha the 10th to the 13th. Three dates - the 10th, 11th and 12th - satisfy both, so the birthday cannot be pinned down: the data are inadequate.

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82.

Read the arrangement carefully and give the answer of following questions ?

K$23DBE8HM4@5JF4%K1+WR#AA*415

How many such symbols are there which is not immediately preceded by a letter but immediately followed by a number ?

Answer: A

Correct answer: 1

Going along the arrangement and keeping only those symbols that have a letter after them but not before them, exactly one qualifies; every other symbol fails one of the two tests.

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83.

Which is the third number to the left of the number which is exactly in the middle of the following sequence of numbers?

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

Answer: C

Correct answer: 4

The sequence holds 27 numbers, so the middle one is the 14th, which is 9. Three places to its left is the 11th number, 4.

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84.

A class of boys stands in a single line, One boy is 19th in order from both the ends, How many boys are there in the class ?

A.37
B.39
C.27
D.38

Answer: A

Correct answer: 37

The boy is counted from both ends, so the class holds \[ 19 + 19 - 1 = \mathbf{37} \] boys.

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85.

Ravi is 7 ranks ahead of Sumit in a class of 39. If Sumit’s rank is seventeenth from the last, what is Ravi’s rank from the start?

A.14th
B.15th
C.16th
D.17th

Answer: C

Correct answer: 16th

Sumit is 17th from the last in a class of 39, so he is $ 39 - 17 + 1 = 23 $rd from the start. Ravi is seven ranks ahead of him: \[ 23 - 7 = \mathbf{16} \text{th} \]

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86.

If the 30th january 2003 was thursday, what was the day day on 2nd march, 2003?

A.sunday
B.thursday
C.tuesday
D.saturday

Answer: A

Correct answer: sunday

31 January is the day after Thursday, a Friday. February 2003 had 28 days - exactly four weeks - so 28 February was also a Friday. 1 March is then Saturday and 2 March Sunday.

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87.

There are five books of different thickness. A is thicker than C and B is thicker than D. E is not as thick as B, but is thicker than C. D is not as thick as C. Which is the thinnest book?

Answer: B

A > C -----(i), B > D -----(ii), E < B> C ---------(iv), C > D ---------(v)

from (i) and (v), we get A > C > D ---------(I)

from (iii) and (iv), we get B > E > C --------(II)

From (I) and (II) , it is clear that 'D' is the thinnest.

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88.

Count each 7 which is not immediately preceded by 5 but is immediately followed by either 2 or 3. How many such 7’s are there?

5 7 2 6 5 7 3 8 3 7 3 2 5 7 2 7 3 4 8 2 6 7 8

Answer: A

Correct answer: 2

Two 7s qualify: the one in 3 7 3, which is preceded by 3 and followed by 3, and the one in 2 7 3. The 7s in 5 7 2 and 5 7 3 are ruled out by the 5 before them, and the last 7 is followed by 8. So there are 2.

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89.

Vishal is 24th from either end of the row of boys ? How many boys are there in the row ?

A.48
B.49
C.46
D.47

Answer: D

Given that Vishal is 24th from either end of the row i.e from two sides

1 2 3 4 5 . . . . . .24 23 22 21 20 . . . . . 5 4 3 2 1

Here before Vishal there are 23 members and after Vishal there are 23 members

= 23+1+23 --> 47 members in the row.

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90.

If it is possible to make a number which is the square of a two-digit odd number using the second, the fourth and the sixth digits of the number 93217648 and using each only once, which of the following is that two-digit odd number?

A.17
B.19
C.15
D.21

Answer: B

Correct answer: 19

The second, fourth and sixth digits of 93217648 are 3, 1 and 6. Arranged as 361 they give $ 19^2 $, and 19 is a two-digit odd number - so the number whose square can be formed is 19.

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