the teacher tells the class that the highest marks obtained by a student in her class is thrice the lowest marks plus to the highest score is 85. take the lowest score to be b
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Answer:
lowestmark is 40.
Step-by-step explanation:
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.
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