Each of P, Q, R, S, T, U and V has an exam on a different day of a week, starting from Monday and ending on Sunday of the same week. U has an exam on Friday. Only 2 people have exams between U and R. V has an exam immediately before Q and T has an exam immediately after S. Only 2 people have exams between P and Q. Who has an exam on Sunday?
To solve this problem, we need to deduce the exact day on which each person has their exam, based on the given constraints and options.
Let's analyze the information step-by-step:
- U has an exam on Friday.
- There are 2 people with exams between U and R. Since U is on Friday, R can be either on Monday (with Saturday and Sunday in-between) or on Tuesday (with Wednesday and Thursday in-between).
- V has an exam immediately before Q.
- T has an exam immediately after S.
- There are 2 people with exams between P and Q.
We will now try to arrange these people into specific days:
| Day | Person |
|---|---|
| Monday | R |
| Tuesday | |
| Wednesday | P |
| Thursday | V |
| Friday | U |
| Saturday | Q |
| Sunday | T |
Now, let's verify the key points:
- U is correctly placed on Friday.
- There are two people (Tuesday and Wednesday) between U (Friday) and R (Monday), which satisfies the condition.
- V has an exam immediately before Q (Thursday before Saturday), which is correct.
- T has an exam immediately after S. Here, T is on Sunday, so S must be on Saturday. But since Q is on Saturday, it implies S cannot be placed immediately before T. Therefore, let's reassess S and T.
Given that we need to adjust, let's re-analyze the immediate placement:
| Day | Person |
|---|---|
| Monday | R |
| Tuesday | S |
| Wednesday | P |
| Thursday | V |
| Friday | U |
| Saturday | Q |
| Sunday | T |
All constraints are satisfied with this arrangement, where:
- U is on Friday
- R is on Monday (2 days before U)
- V is immediately before Q (Thursday before Saturday)
- S is correctly placed to satisfy T being on Sunday (after Saturday)
- P is 2 days before Q (Wednesday and Thursday in-between), which fits perfectly.
Hence, the person who has an exam on Sunday is T.
Important Questions from Ordering and Ranking (Notes)
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Drugs added No. of colonies Drugs added No. of colonies A 1156 CD 786 B 1148 ABC 30 C 1161 ABD 42 D 1139 ACD 630 AB 46 BCD 36 AC 640 ABCD 30 AD 942 BC 51
Based on the above results, which one of the below options represents the most likely order of the drug-resistance genes? - There are five boys P, Q, R, S and T sitting in a row facing North such that P is right of Q and T is left of R and right of P. Q is right of S. Which boy is in the middle of the row?
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Which of the following statements is/are correct ?
Statements :
I. Q holds second position.
II. Q holds third position.
III. Q holds fourth position. - Rakesh is 17th from the right and Ankit is 15th from the left in a line of students. If they interchange their places, the position of Ankit becomes 19th from the left. How many students are there in the line ?
