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 koi to reply do bahut jaruri hai​

Answer 1

Answer:

Ans-40

Step-by-step explanation:

Let the lowest mark be x

highest mark=2x+7

So, x+x+7=87

2x=87-7

x=40

Hope this will help U....Ur frnd

Answer 2

Answer:

x×x+7=87

2x+7=87

2x=87-7

2x=80

x=80/2

x=20

therfore 20+7=27

27 is the lowest number