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Set up an Equation in the Following Case: the Teacher Tells the Class that the Highest Marks Obtained by a Student in Her Class is Twice the Lowest Marks Plus 7. the Highest Score is 87. - Mathematics

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Sum

Set up an equation in the following case:

The teacher tells the class that the highest marks obtained by a student in her class is twice the lowest marks plus 7. The highest score is 87. (Take the lowest score to be l.)

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Solution

Let the lowest marks be l.

2 × Lowest marks + 7 = Highest marks

2 × l + 7 = 87

2 l + 7 = 87

Concept: Concept of Equation
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APPEARS IN

NCERT Class 7 Maths
Chapter 4 Simple Equations
Exercise 4.1 | Q 6.3 | Page 82
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