Question

INSTRUCTION : Question given below has four answer options out of which ONLY ONE is correct. Choose the most appropr
For CORRECT answer you will be awarded +4 Marks and for WRONG answer there is a negative marking of 1 Mark. No mar
unattempted.
3
Suppose a, b, c are AP and a2, 62, 62 are in GP, if a < b <c and a+b+c= 3, then the
value of a is ..........
1
(A)
212
1
(B)
23
(C)
1 1
2 3
(D)
1 1
2 2
RESPONSE AREA
OB В
СА​

Answer 1

Answer:

Negative marks is a must and it is widely used to avoid correct answers due to luck. When a wrong answer does not score negatively, students will answer all questions even if they don't know the right solution, because there is a chance they will choose the good one.

There is a math model to demonstrate that. For example, for questions with 3 options, every two wrong answers eliminate one right answer (i.e., if a right answer scores 4, a wrong answer scores -1).

Please, i don't think this is too hard to implement. It would be great. I would love to use google form to mark my tests but i want +marking for correct answer and - marking for incorrect answer.  

Best regards

Step-by-step explanation: