Six boxes U, V, W, X, Y and Z have different weights. Box W is heavier than only U. Box V is lighter than only Z. Box X is heavier than Y. Which box is the third heaviest?
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → X
‘Heavier than only U’ means exactly one box, U, is lighter than W. ‘Lighter than only Z’ means exactly one box, Z, is heavier than V. Place these first, from the heaviest.
Only Z is heavier than V: Z is 1st and V is 2nd
Only U is lighter than W: W is 5th and U is 6th
X and Y fill the 3rd and 4th places; X is heavier than Y, so X is 3rd and Y is 4th
Order: Z, V, X, Y, W, U, so the third heaviest is X
