If you fail, never give up because FAIL means 'First Attempt In Learning'.— A. P. J. Abdul Kalam

Ranking and Order — quick quiz

5 real SOF NSO questions on Ranking and Order. Instant scoring and solutions, no signup — see where you stand in ~3 minutes.

Question 1 of 5

HARD

In a row of students facing North, Ravi is 10th from the left end. Suresh is 15th from the right end. When they interchange their positions, Ravi becomes 18th from the left. How many students are between Ravi and Suresh in their original positions?