Question

Ashley ate exactly one-third of the peanuts in a dish. Then, Emily ate exactly one-fourth of the remaining peanuts in the dish. Lastly, Isabella ate exactly one-fifth of the remaining peanuts in the dish. What is the least number of peanuts that could be in the dish when Isabella finishes? [Whole peanuts may not be split into smaller parts.]

Answer 1

12 peanuts

Explanation:

use algebra using the given ratios...and use trial and error to find the total number of peanuts.

multiply that by the final ratio.