Saplings are planted in a single straight line, 4 m apart. A marked sapling is 6th from the left end and 22nd from the right end of the line. How far is the marked sapling from the sapling that stands exactly at the centre of the line?
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → 32 m
Find the number of saplings from the two-end count, locate the centre sapling, and count the gaps between the two saplings.
Saplings in the line \(=6+22-1=27\)
With 27 saplings, the centre sapling has 13 saplings on each side: it is \(13+1=14\)th from the left
Gaps between the 6th and the 14th sapling \(=14-6=8\)
Distance \(=8\times4=32\,\mathrm{m}\)
