Reasoning - Number, Ranking & Time Sequence
6.
In a row of girls, Rita and Monika occupy the ninth places from the right end and tenth place from the left end, respectively. If they interchange their places, Rita and Monika occupy seventeenth places from the right and eighteenth place from the left, respectively. How many girls are there in the row ?
Answer
Since Rita and Monika exchange places, so Rita's new position in the same as Monika's earlier position.
The position is 17th from the right and 10th from the left.
∴ Number of girls in the row = (16 + 1 + 9) = 26.
Answer :
Option BExplanation :
Since Rita and Monika exchange places, so Rita's new position in the same as Monika's earlier position.
The position is 17th from the right and 10th from the left.
∴ Number of girls in the row = (16 + 1 + 9) = 26.
7.
In a queue of children, Kashish is fifth from the left and Mona is sixth from the right. When they interchange their places among themselves, Kashish becomes thirteenth from the left. Then, what will be Mona's position from the right ?
Answer
Since Kashish and Mona interchange places, so Kashish's new position (13th from left) is the same as Mona's earlier position (6th from right).
So, number of children inn the queue = (12 + 1 + 5) = 18.
Now, Mona's new position is the same as Kashish's earlier position i.e. fifth from left.
∴ Mona's position from the right = (18 − 4) = 14th.
Answer :
Option CExplanation :
Since Kashish and Mona interchange places, so Kashish's new position (13th from left) is the same as Mona's earlier position (6th from right).
So, number of children inn the queue = (12 + 1 + 5) = 18.
Now, Mona's new position is the same as Kashish's earlier position i.e. fifth from left.
∴ Mona's position from the right = (18 − 4) = 14th.
8.
Ram ranks sixteenth from the top and forty ninth from the bottom in a class. How many students are there in the class ?
Answer
Number of students in the class = (15 + 1 + 48) = 64
Answer :
Option AExplanation :
Number of students in the class = (15 + 1 + 48) = 64
9.
Arun ranks twelfth in a class of forty-six. What will be his rank from the last ?
Answer
Number of students behind Arun in rank = (46 − 12) = 34.
So, Arun is 35th from the last.
Answer :
Option CExplanation :
Number of students behind Arun in rank = (46 − 12) = 34.
So, Arun is 35th from the last.
10.
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?
Answer
Sumit is 17 th from the last and Ravi is 7 ranks ahead of sumit.
So, Ravi is 24th from the last.
Number of students ahead of Ravi in rank = (39 − 24) = 15.
So, Ravi is 16th from the start.
Answer :
Option CExplanation :
Sumit is 17 th from the last and Ravi is 7 ranks ahead of sumit.
So, Ravi is 24th from the last.
Number of students ahead of Ravi in rank = (39 − 24) = 15.
So, Ravi is 16th from the start.
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