Math, asked by fatima2612, 1 year ago

In an exam a boy got 95 marks in English and maths,105 marks in English and history and 80 marks in maths and history. find his marks in each subject.

Answers

Answered by poonamyewale567
13

given eng +mat = 95 .......eq 1

eng +his = 105.....................eq 2

mat + his =80........................eq3

subtract eq 2 from 1

will get his -mat=10 .........eq4

now by adding eq 3 and 4

mat + his -mat+his= 80+10

2 his =90

his =45

by substituting  history value in 2 and 3

eng =105-45=60

mat=80-45=35

therefore history :45 , maths : 35 , english : 60

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