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Rufus has a total of 20 coins of 2 types | GMAT | DI | TPAQ | Hard | GFE Mock

Rufus has a total of 20 coins of 2 types | GMAT | DI | TPAQ | Hard | GFE Mock
A 2 min read

Question

Rufus has a total of 20 coins of 2 types, Type Q and Type R. The value of each Type of Q coin is 5q currency units (cu), and the value of each Type R coin is 5r cu, where q and r are positive integers and q < r ……

Rufus has a total of 20 coins of 2 types

Solution : ­­Rufus has a total of 20 coins of 2 types …

Watch the video solution to see “owning the dataset” approach come to life on this question. 

Question Attributes

  • Source: Official Mocks
  • Difficulty Level: Hard – 40% accuracy
  • Question Type: Two-Part Analysis – Quant
  • Category: Math

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Summary – ­­­Rufus has a total of 20 coins of 2 types …

To master DI questions, apply the “owning the dataset” approach that entails the following three steps:

  1. Thoroughly understand the dataset by actively translating, drawing inferences, and visualizing information.
  2. Determine the approach to solve the question asked.
  3. Execute the approach.

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