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Answer 1

Answer:

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?

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Let lowest marks obtained by students is x

⇒∴heighest marks =2x+7→(i)

⇒highest score is 87

From equation (I) 87=2x+7,

$\frac{80}{2} = x = 4$

Then lower score is 40.

Answer 2

Answer:

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