Question 63
HardOriginal questionIn a test, Lalit scored more than Mansi, and Neeraj also scored more than Mansi. Mansi scored more than Ojas. Parul scored more than Lalit. No two scores are equal. Which one additional fact would fix the complete order of the five scores?
Show the answer and explanation
Correct answer: D
Explanation
Parul > Lalit > Mansi > Ojas, and Neeraj > Mansi, so Neeraj may be 1st, 2nd or 3rd.
'Neeraj scored more than Parul' leaves only Neeraj > Parul > Lalit > Mansi > Ojas: one order.
'Neeraj scored less than Parul' still leaves Neeraj above or below Lalit: two orders.
'Ojas scored the least' and 'Lalit scored more than Ojas' are already known, so three orders remain.
Worth noting
A clue that is already implied adds nothing. Test each extra clue by counting how many orders survive; the right one leaves exactly one.
- Concept
- Choosing the clue that makes the order unique
- Typical timeTypical
- 115 s
- Your timeYours
- —
Ten questions from Ranking and Ordering, at your own pace.