Practice Quiz

Consulting Case Interview Practice Questions

Category - Fast Math

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Dottie’s Chocolates produces boxes of 25 chocolate drops for selling. How many chocolate drops would Dottie need to make to fill 60 boxes?
  1. 1,575
  2. 1,225
  3. 1,400
  4. 1,500
  5. 1,525
Explanation
Answer: 25 x 60 = 1,500. To multiply a number by 25, just add two zeroes to the end of the number and divide by 4. In this case, change 60 to 6000, then divide by 4, which equals 1500.

Key Takeaway: It is always easiest to calculate if you can manipulate numbers in terms of ones, tens, and hundreds.
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