Question

Qüēßtîøñ:-

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?.

_______✧✿❤️✿✧______


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Answer 1

Answer:

Let's assume the lowest mark is

′

x

′

.

twice the lowest mark will be 2x

given that twice the lowest marks plus seven is highest mark.

=> 2x+7=87

=>2x=80

=>x=40

Hence the lowestmark is 40.

Answer 2

Question:

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?

Given:

The highest marks = 87

To Find:

The lowest marks

Solution:

Let the lowest marks be x

Highest marks = 2 times lowest marks + 7

$87 = 2x + 7 \\\\\\87-7=2x\\\\\\2x=87-7\\\\\\2x=80\\\\\\x=\frac{80}{2}\\\\\\x=40$

Answer:

Lowest marks = 40