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Exam GMAT Section 2 Quantitative All Questions

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Exam GMAT Section 2 Quantitative topic 1 question 238 discussion

Actual exam question from Test Prep's GMAT Section 2 Quantitative
Question #: 238
Topic #: 1
[All GMAT Section 2 Quantitative Questions]

The angles of a triangle are in the ratio of 3: 2: 1. The largest angle in the triangle is:

  • A. 36.
  • B. 45.
  • C. 72.
  • D. 90.
  • E. 108.
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Suggested Answer: E 🗳️
The sum of all the angles is 180. Divide 180 by 6 (3+2+1) and well get 36; this is the size of the smallest angle. The largest angle is three times bigger, thus 36 x 3
= 108 degrees.

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MattG
12 months ago
Selected Answer: D
GPT To find the largest angle in the triangle with angles in the ratio of 3:2:1, you first add up the parts of the ratio: 3 + 2 + 1 = 6. This total represents the number of equal parts the sum of the triangle's angles (180 degrees) is divided into. Since the angles are in the ratio 3:2:1, you can calculate the size of one part: One part = 180 ° 6 = 30 ° One part= 6 180° ​ =30°. The largest angle corresponds to the largest part of the ratio, which is 3 parts: Largest angle = 3 × 30 ° = 90 ° Largest angle=3×30°=90°. So, the largest angle in the triangle is 90 degrees, which corresponds to choice D. 90.
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