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. What is the lowest score?

Open in App

Solution

let the lowest marks be x, then

(87 - 7) /2 = x

=80 / 2 = x

= 40

Therefore, the lowest score of the class is 40 marks.

Suggest Corrections

Similar questions

Q. 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. What is the lowest score?

Q. Solve the following:
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

. What is the lowest score?

Q. 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. )

Q. Teacher tells the class that the highest score obtained by a student are 9 more than thrice the lowest score. If the highest score is 90. What is the lowest score?

Solve the following:

(a) 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 $87$ . What is the lowest score?

(b) In an isosceles triangle, the base angles are equal. The vertex angle is $40 °$ . What are the base angles of the triangle? (Remember, the sum of three angles of a triangle is $180 °$ ).

(c) Sachin scored twice as many runs as Rahul. Together, their runs fell two short of a double century. How many runs did each one score?

Join BYJU'S Learning Program

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. What is the lowest score?

let the lowest marks be x, then (87 - 7) /2 = x =80 / 2 = x = 40 Therefore, the lowest score of the class is 40 marks.

let the lowest marks be x, then

(87 - 7) /2 = x

=80 / 2 = x

= 40

Therefore, the lowest score of the class is 40 marks.