Step-by-step explanation:
Total no. of questions = 20
Marks given for a correct answer = 4
Marks deducted for a wrong answer = 1
No. of questions attended by the candidate = a
No. of questions the candidate gets correct = c
No. of questions the candidate gets wrong = a - c
Marks obtained for correct answers = 4c
Marks deducted for wrong answers = 1 (a - c)
Total marks scored by the candidate =
Marks obtained for correct answers - Marks deducted for wrong answers
Total marks scored by the candidate = 4c - 1 (a - c)
= 4c - a + c
= 5c - a
Answer:
A≈113.1cm²
Step-by-step explanation:
Answer:
First answer is correct and the answer for the second question is a = 30
Answer:
0.153846154
Step-by-step explanation:
Google it.
Answer:
7=7000
Step-by-step explanation:
