In a column of 20 boys, D is fourteenth from the front and F is ninth from the back. How many boys are there between D and F?
Richard is 15th from the front in a column of boys. There were thrice as many boys behind him as there were in front. How many boys are there between Richard and the seventh boy from the end of the column?
Q62. Abhishek is fifteenth from the front in a column of boys. There are thrice as many behind him as there are in front. How many boys are there between Abhishek and the seventh boy from the end of the column?