Question

In a class test containing 10 questions, 4 marks are given for every correct answer, (-2) are given for every incorrect answer and (-1) is given for every question for not attempting. Gagan attempted only 9 questions and out of 9, 7 were correct. Choose the correct option to identify a correct score. *

1 point

7 × (4) + 2 × (-2) + 1 × (-1)

7 × (4) - 2 × (-2) + 1 × (-1)

7 × (4) + 2 × (-2) + (-1) × (-1)

None of these​

Answer 1

Step-by-step explanation:

Rectangular matrix is one type of matrix. In this matrix, the elements are arranged in rows and columns. The arrangement of elements in the matrix represents a rectangle shape. Hence, it is called a rectangular matrix. ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ʀᴀsʜᴍɪ ʜᴇʀᴇ ~