Math, asked by jyothinaren1516, 9 months ago

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

Answers

Answered by TigerMan28

6

Answer:88 marks

Step-by-step explanation:

Let he marks in next test be x.

Mean =sum of observation /no. Of observation

80=73+86+78+75+x/5

400=312+x

400-312=x

x=88

Therefore, she should score 88 marks.

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