Question

Soehal scored 28 marks out of 40 in unit test 1 of maths. What should be her minimum marks in unit test I to achieve the overall score of 80%?​

Answer 1

Answer:

Let the minimum score be x.

(28+x)/80 = 80/100

(28+x)100 = 80×80

2800 + 100x = 6400

100x = 6400 - 2800

100x = 3600

x = 3600/100

x = 36

=> 36 marks

Hence , Minimum score should be 36 marks in Unit Test 2 to achieve 80 % .

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