# Number, Ranking and Time Sequence Test Questions

Q:

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  1  3  2  8  7  4  1  3  8  3  2  5  6  7  4  3  9  5  8  2  0  1  8  7  4  6  3

 A) Four B) Three C) Six D) Five

Explanation:

7  4  2

7  4  6

7  4  1

7  4  6

Only at these placees 4 is preceded by 7 but not followed by 3

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Q:

How many such pairs of digits are there in the number 421579368 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

Explanation:

Given Number:     4  2  1  5  7  9  3  6  8

Ascending order:  1  2  3  4  5  6  7  8  9

Hence the required pairs are  12, 49, 16

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Q:

In a row of boys, If A who is 10th from the left and B who is 9th from the right interchange their positions, A becomes 15th from the left. How many boys are there in the row ?

 A) 23 B) 31 C) 27 D) 28

Explanation:

Clearly, A’s new position is 15th from the left. But this is the same as B’s earlier position which is 9th from the right.

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Q:

Sam ranked 9th from the top and 38th from the bottom in a class. How many students are there in the class ?

 A) 45 B) 47 C) 46 D) 48

Explanation:

Number of students in class = (8 + 1 + 37) = 46

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Q:

Nitin ranks 18th in a class of 49 students. What is rank from the last ?

 A) 31 B) 18 C) 32 D) 19

Explanation:

Number students behind the nitin in rank = (49 - 18) = 31

Nitin is 32nd from the last

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Q:

In a queue, Amrita is 10th from the front while Mukul is 25th from behind and Mamta is just in the middle of the two. If there be 50 persons in the queue. What position does Mamta occupy from the front ?

 A) 14th B) 16th C) 18th D) 20th

Explanation:

Number of persons between Amrita and Mukul = 50 - (10 + 25) = 15. Since Mamta lies in middle of these 15 persons, so Mamta`s position is 8th from Amrita i.e. 18th from the front.

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Q:

P, Q, R, S, T, U, V and W are sitting round the circle and are facing the centre:
P is second to the right of T who is the neighbour of R and V.
S is not the neighbour of P.
V is the neighbour of U.
Q is not between S and W. W is not between U and S.

Then Who is sitting opposite to U ?

 A) Q B) P C) R D) W

Explanation:

From the given information, the sitting arrangement can be

P-Q-W-S-U-V-T-R  i.e. in circular as From the above figure it is clear that opposite to U is P.

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Q:

How many such digits are there in the number 7346285 which are as far away from the beginning of the number, as they will be when arranged in ascending order within the number?

 A) None B) one C) Two D) Three