Give me class 7 math chapter 1 exercise 1.4 question no. 6Fast

1.	Give me class 7 math chapter 1 exercise 1.4 question no. 6Fast
Answer» Answer: Step-by-step explanation: (i) Marks given for one correct answer = 3 Marks given for 12 correct answers = 3 x 12 = 36 Radhika SCORED 20 marks. Therefore, Marks obtained for incorrect answers = 20 – 36 = –16 Now, marks given for one incorrect answer = –2 Therefore, number of incorrect answers = (–16)÷(–2)=8 Thus, Radhika has attempted 8 incorrect questions. (ii) Marks given for SEVEN correct answers = 3 x 7 = 21 Mohini scores = –5 Marks obtained for incorrect answers = = –5 – 21 = –26 Now, marks given for one incorrect answer = –2 Therefore, number of incorrect answers = (–26)÷(–2)=13 Thus, Mohini has attempted 13 incorrect questions.

Answer»

Answer:

Step-by-step explanation:

(i) Marks given for one correct answer = 3

Marks given for 12 correct answers = 3 x 12 = 36

Radhika SCORED 20 marks.

Therefore, Marks obtained for incorrect answers = 20 – 36 = –16

Now, marks given for one incorrect answer = –2

Therefore, number of incorrect answers = (–16)÷(–2)=8

Thus, Radhika has attempted 8 incorrect questions.

(ii) Marks given for SEVEN correct answers = 3 x 7 = 21

Mohini scores = –5

Marks obtained for incorrect answers = = –5 – 21 = –26

Now, marks given for one incorrect answer = –2

Therefore, number of incorrect answers = (–26)÷(–2)=13

Thus, Mohini has attempted 13 incorrect questions.

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