Math, asked by divyamBhaskar, 8 hours ago

Vinny secured 73,86,78and 75 marks in four tests . what is the least number of marks she should secure in her next test if she has to have a mean score of 80 marks in five tests.

Answers

Answered by sitaramramdularrajak

4

Answer:

it is right answer

Attachments:

Answered by ItzMissHeartHacker

16

Answer:

As mean in 5 test is 80

So sum of marks = 80*5 = 400

Now sum of marks in her 4 test = 73 + 86 + 78 + 75 = 312

So she has to secure atleast 400-312 = 88 marks to get a mean of 80

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