Renu scored 73,86,78and 75 marks in four tests. What is the least number of marks she can score in her next , if she has to have a mean score of minimum 80 marks in five tests?
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Answer:
88
Step-by-step explanation:
Now mean marks of Renu is (73+75+78+86+x)/5=80. On solving this equation we get x is 88. Thus minimum marks in the next test is 88
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