For how many cases, D is an answer for at least one of the questions?

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B
3

$\begin{matrix} Q u e s t i o n & R e s p o n s e s & (9 o f t h e m w i l l b e w r o n g) 1 & A & C D & \to T w o w r o n g . 2 & B & A B & \to A t l e a s t o n e w r o n g . 3 & C & A A & \to A t l e a s t o n e w r o n g . 4 & D & B C & \to T w o w r o n g . 5 & C & B B & \to A t l e a s t o n e w r o n g . 6 & A & C C & \to A t l e a s t o n e w r o n g . \end{matrix}$

Suggest Corrections

Similar questions

How many distinct cases for the correct responses of the questions exist?

Q. In an exam one Mark is awarded for one correct answers and 1\4 Marks is deducted for each wrong answers. A student who awarded a total of 120 questions, got 90 Mark. How many questions did he answer correctly

In an examination, one mark is awarded for every correct answer, while 1/4 mark is deducted for every wrong answer. A student answered 120 questions and got 20 marks. Which of the following pair of equations would give the result for how many questions did he answered correctly?

Q. Sona and Mona took an exam of 50 questions, in which +1 mark was given for every correct answer,

\frac{- 1}{3}

for an incorrect one and 0 for an unattempted question. Mona attempted all questions and answered a few incorrectly, but Sona answered all attempted questions correctly. If their scores are the same, maximum how many questions can Sona answer?

Q. In a competitive examination , one mark is awarded for each correct answer while 1/2 mark is deducted for everey wrong answer . Jayanti answered 120 questions and got 90 marks. How many questions did she answer correctly.

Join BYJU'S Learning Program

For how many cases, D is an answer for at least one of the questions?

The correct option is B 3QuestionResponses(9 of them will be wrong)1AC D→Two wrong.2BA B→At least one wrong.3CA A→At least one wrong.4DB C→Two wrong.5CB B→At least one wrong.6AC C→At least one wrong.