Question

Eight books on different subjects, such as Biology, Chemistry, Physics, Mathematics, English, Hindi, Zoology, and Economics are stacked together. Further it is known that:
(i) Economics is above Biology which is just above Hindi, which is not at the bottom.
(ii) There are only two books between the Zoology and the English books.
(iii) The number of books above Chemistry is less than the number of books below it.
(iv) Only Mathematics book is above Zoology.

Which book is at the bottom of the stack?

• A. Physics
• B. Hindi
• C. English
• D. Economics

Answer 1

The Correct Option is A

The sequence of the books is arranged based on the given conditions:
- Mathematics is the only book above Zoology.
- Economics is above Biology, which is just above Hindi, which is not at the bottom.
- Two books are between Zoology and English.
- The number of books above Chemistry is fewer than the books below it.

After arranging, we find that Physics is at the bottom.
In stacking problems, apply the conditions to position each item correctly, then analyze the remaining positions to determine the item at the bottom.