Jatin is ninth from the front in a column of boys. There were thrice as many behind him as there were in front. How many boys are there between Jatin and the fifth boy from the end of the column?
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → 19
The column is counted from the front: the boys in front of Jatin give the number behind him, and the two together give the length of the column.
Jatin is 9th from the front, so 8 boys are in front of him
Behind him: \(3\times8=24\) boys
Boys in the column \(=8+1+24=33\)
The 5th boy from the end (X) is \(33-5+1=29\)th from the front
Boys between the 9th and the 29th \(=29-9-1=19\)
