The supplement of an angle is 15° more than three times its complement. The measure of the angle is:

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RRC Group D Previous Paper 42 (Held On: 16 Oct 2018 Shift 3)
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  1. 57.5°
  2. 65°
  3. 52.5°
  4. 72.5°

Answer (Detailed Solution Below)

Option 3 : 52.5°
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Detailed Solution

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Given:

The supplement of an angle is 15° more than three times its complement.

Concept Used:

In this type of question, supplement of angle = 180° – x,

Complement of angle = 90° – x

Calculation:

Let angle be x°

According to the question,

180° – x = 3(90° – x) + 15°

⇒ 180° – x° = 270° – 3x° + 15°

⇒ 2x = 105

⇒ x = 52.5

∴ The measure of the angle is 52.5°.
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