Question 66
HardOriginal questionSix students, Naveen, Oindrila, Prakash, Rukhsar, Sanjay and Tejas, got different marks in a mathematics test.
Tejas scored the lowest marks.
Exactly two students scored more than Prakash.
Oindrila scored less than Rukhsar but more than Sanjay.
Naveen scored more than Oindrila.
Rukhsar did not get the highest marks.
The six students from the mathematics test now sit in a row facing north in increasing order of marks from left to right, with the lowest scorer at the left end. How many students sit between Rukhsar and Sanjay?
Show the answer and explanation
Correct answer: B
Explanation
Tejas is 6th and Prakash is 3rd, leaving places 1, 2, 4 and 5.
Oindrila is below Rukhsar and Naveen but above Sanjay, so Oindrila and Sanjay take 4th and 5th, and Rukhsar and Naveen take 1st and 2nd.
Rukhsar is not first, so the order is Naveen, Rukhsar, Prakash, Oindrila, Sanjay, Tejas (highest first).
From the left (lowest first): Tejas, Sanjay, Oindrila, Prakash, Rukhsar, Naveen.
Sanjay is 2nd and Rukhsar 5th from the left, so Oindrila and Prakash sit between them: 2 students.
Worth noting
3 is the difference of their places , which counts one of them. The order from the left is the marks order reversed.
- Concept
- Converting a marks order into a row and counting between
- Typical timeTypical
- 115 s
- Your timeYours
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