A student got twice as many questions wrong as he got right. If he attempted…

2024

A student got twice as many questions wrong as he got right. If he attempted 48 questions in all, what is the number of questions solved by him correctly?

  1. A.

    24

  2. B.

    16

  3. C.

    12

  4. D.

    More than one of the above

  5. E.

    None of the above

Attempted by 23 students.

Show answer & explanation

Correct answer: B

Let the number of questions solved correctly be x.
Then, the number of questions solved incorrectly is 2x.
The total number of questions attempted is x + 2x = 3x.
Given that the total is 48, we have 3x = 48.
Solving for x gives x = 16.
Therefore, the number of questions solved correctly is 16.

हिन्दी उत्तर:
माना सही उत्तर दिए गए प्रश्नों की संख्या x है।
तब गलत उत्तर दिए गए प्रश्नों की संख्या 2x होगी।
कुल प्रश्नों की संख्या x + 2x = 3x है।
दिया गया है कि कुल प्रश्न 48 हैं, इसलिए 3x = 48।
x का मान ज्ञात करने पर x = 16 प्राप्त होता है।
अतः सही उत्तर दिए गए प्रश्नों की संख्या 16 है।

A video solution is available for this question — log in and enroll to watch it.

Explore the full course: Rssb Senior Computer Instructor