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प्र:

In a class of 180, where girls are twice the number of boys, Rupesh[a boy]  ranked 34th from the top. If there are 18 girls ahead of Rupesh, how many boys are after him in rank?

 2.4K 0
  • 1
    45
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    Wrong
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    44
    Correct
    Wrong
  • 3
    60
    Correct
    Wrong
  • 4
    can't be determined
    Correct
    Wrong
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उत्तर : 2
44

Explanation :

Answer: B) 44 Explanation: No. of boys up to the 34th rank = 34-18 = 16    Total no of boys = 180x1/2+1 = 60    number of boys after the rank of Rupesh = 60 - 16 = 44

प्र:

In a class of 50 students M is eighth from top. H is 20th from bottom. How many students are there between M and H?

 2.3K 0
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    22
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    23
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    Wrong
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    24
    Correct
    Wrong
  • 4
    can't be determined
    Correct
    Wrong
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उत्तर : 1
22

Explanation :

Answer: A) 22 Explanation: M is 8th from the top.   H is (50 - 20 + 1 =) 31 st from the top.   Number of students between M and H = (31 - 8- 1=)22

प्र:

In a row of thirty boys, R is fourth from the right end and W is tenth from the left end . How many boys are there between R and W?

 2.8K 0
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    15
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    16
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    Wrong
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    17
    Correct
    Wrong
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    can't be determined
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उत्तर : 2
16

Explanation :

Answer: B) 16 Explanation: W = 10th from the left   R = 4th from the right = (30 - 4 + 1= ) 27th from left    No of boys between R and W = (27 - 10) - 1 = 16

प्र:

Three persons A, B and C are standing in a queue. There are five persons between A and B and eight persons between B and C. If there be three persons ahead of C and 21 persons behind A, what could be the minimum number of persons in the queue?

 5.9K 0
  • 1
    41
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    Wrong
  • 2
    40
    Correct
    Wrong
  • 3
    28
    Correct
    Wrong
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    27
    Correct
    Wrong
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उत्तर : 3
28

Explanation :

Answer: C) 28 Explanation: Three persons A, B, C can be arranged in a queue in six different ways, ie ABC, CBA, BAC, CAB, BCA, ACB. But since there are only 3 persons ahead of C, so C should be in front of the queue. Thus, there are only two possible arrangements, ie CBA and CAB.   We may consider the two cases as under: Case I:  ←3C↔8B↔5A→21   Clearly, number of persons in the queue = (3+1+8+1+5+1+21=) 40   Case II:  ←3C A↔5B   Number of persons between A and C                     = (8 - 6) = 2    ∵[C↔8B A→21B]   Clearly number of persons in the queue = (3+1+2+1+21) = 28   Now, 28 < 40. So, 28 is the minimum number of persons in the queue.

प्र:

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

 1.9K 0
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    9
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    8
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    7
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    6
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उत्तर : 4
6

Explanation :

Answer: D) 6 Explanation: Here the series is:   987654321, 87654321, 7654321, 65...

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