Time Sequence
- Adi remember that his sister Ana's date of birth falls after 20th September but before 23rd September, while his father remember that Ana's birthday falls after 21st and before 24th September. What is the correct date of birth of Ana?
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The possible date of birth of Ana according to Adi are 21st and 22nd September. But according to his father Ana's date of birth should be 22nd and 23rd September.
Correct Option: B
The possible date of birth of Ana according to Adi are 21st and 22nd September. But according to his father Ana's date of birth should be 22nd and 23rd September. Now after both conclusion there is 22nd September common date, so answer is that (b).
- In a row of children, Bhusan is seventh from the left and Motilal is fourth from the right. When Bhusan and Motilal exchange positions, Bhusan will be fifteenth from the left. Which will be Motilal’s position from the right?
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After exchanging positions, Bhusan becomes fifteenth instead of seventh from the left, it means there are 7 students between them.
Correct Option: D
After exchanging positions, Bhusan becomes fifteenth instead of seventh from the left, it means there are 7 students between them. So Motilal’s position from the right will become twelfth. [i.e., (15 – 7) + 4 = 12]
- In a queue, Vijay is fourteenth from the front and Jack is seventeenth from the end, while Mary is in between Vijay and Jack. If Vijay be ahead of Jack and there be 48 persons in the queue, how many persons are there between Vijay and Mary?
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Number of persons between Vijay and Jack = 48 – (14 + 17) = 17
Now, Mary lies in middle of these 17 persons.Correct Option: B
Number of persons between Vijay and Jack = 48 – (14 + 17) = 17
Now, Mary lies in middle of these 17 persons i.e, at the eighth position.
So, number of persons between Vijay and Mary = 7.
- In a line of boys, Ganesh is 12th from the left and Rajan is 15th from the right. They interchange their positions. Now, Rajan is 20th from the right. What is the total no. of boys in the class?
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Total students = [ First position of Ganesh + Second position of Rajan ] –1
Correct Option: D
Total students = [ First position of Ganesh + Second position of Rajan ] –1
Total students = [12 + 20] – 1 = 31
- The positions of the first and the sixth digits in the number 3597280164 are interchanged. Similarly, the positions of the second and the seventh digits are interchanged, and so on. Which of the following will be the fourth digit from the right end after the rearrangement?
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According to given question,
If the positions of the first and the sixth digits of the group of digits 3 5 9 7 2 8 0 1 6 4 are interchanged.
New number after interchange = 8 5 9 7 2 3 0 1 6 4
Then the positions of the second and the seventh digits are interchanged.
New number after interchange = 8 0 9 7 2 3 5 1 6 4Correct Option: A
According to given question,
If the positions of the first and the sixth digits of the group of digits 3 5 9 7 2 8 0 1 6 4 are interchanged.
New number after interchange = 8 5 9 7 2 3 0 1 6 4
Then the positions of the second and the seventh digits are interchanged.
New number after interchange = 8 0 9 7 2 3 5 1 6 4
After interchanging the number becomes as follows: 8 0 9 7 2 3 5 1 6 4
fourth digit from the right end after the rearrangement : 5
