Question

The teacher tells the class that the highest marks obtained by a student in her class

is twice the lowest marks plus 5. The highest score is 85. What is the lowest score?​

Answer 1

Answer:

40

Step-by-step explanation:

Let lowest score be x

So 85 = 2x + 5

85-5 = 2x

80 = 2x

x = 40

Therefore the lowest marks = x = 40

Answer 2

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.