Multiple choice general knowledge math & puzzles

Recently I bought some guavas at my local market for Rs. 1.20. But they were so small that I made the vendor throw in two extra guavas for the same price. As I began to walk away the vendor mumbled that this transaction had made lose10 paise a dozen less than the price settled before. How many guavas did I get for my Rs. 1.20?

  1. 18

  2. 23

  3. 45

  4. 9
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

This is an exact duplicate of question 17470. Let n be guavas received. Original price/dozen = 1.44/n. After 2 extra: price/dozen = 1.44/(n+2). Vendor lost 10 paise/dozen: 1.44/n - 1.44/(n+2) = 0.10. Solving gives n = 18 guavas.

Keep practicing — related questions