the teacher tells the class that the highest marks obtained by a student in class is twice the lowest marks plus 7 the highest score is 87 what is the lowest score
Answers
Answered by
64
Answer :
›»› The lowest score obtained by a student in class is 40 marks.
Given :
- The teacher tells the class that the highest marks obtained by a student in class is twice the lowest marks plus 7 the highest score is 87.
To Find :
- The lowest score obtained by a student in class.
Solution :
Let us assume that, the lowest score obtained by a student in class is x marks.
As it is given that, the highest marks obtained by a student in class is twice the lowest marks plus 7.
→ 2x + 7
According to the given question,
→ Highest marks = 2x + 7
→ 87 = 2x + 7
→ 87 - 7 = 2x
→ 80 = 2x
→ 80/2 = x
→ 40 = x
→ x = 40
Hence, the lowest score obtained by a student in class is 40 marks.
Verification :
→ Highest marks = 2x + 7
→ 87 = 2x + 7
→ 87 = 2 * 40 + 7
→ 87 = 80 + 7
→ 87 = 87
Here, LHS = RHS
Here both the condition satisfy, ao our answer is correct.
Hence Verified !
Answered by
12
Answer:
Lowest score = 40.
Step-by-step-explanation:
⇒ 87 = 2x + 7
⇒ 87 – 7 = 2x
⇒ 80 = 2x
⇒ x = 40
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