All 29 people are standing in a row facing North. Peter is 11 th from the right end while Robin is 9th from the left end. How many people are there between Peter and Robin?
A7
B10
C8
D9
A7
B10
C8
D9
Related Questions:
V, W, X, Y, Z and A are six singers who have their concerts in different days of the same month, viz. 12th, 14th, 16th, 21st, 25th and 31st of July.
W has his concert on one of the days before X, but not on 21st. V has his concert on 14th. Only A has his concert after X. Y has his concert before V. Who has the concert on 21st of July?