Question

The teacher tells the class that highest marks obtained by students in her class are twice the lowest marks plus 7 . The highest score is 87. What is the lowest score?

Answer 1

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Answer 2

Answer:

40

Step-by-step explanation:

Let the lowest marks obtained by the student be

Therefore the highest score = 2 × + 7

Highest score = 2 × + 7

87 = 2 + 7

2 = 87 − 7

= 80÷ 2  = 40