Question

A student scored 65 marks in first language , 50 marks in science,55 marks in social science and some marks in mathematics.if the average marks scored by him in all the four subjects is 60, then the marks scored by him in mathematics is​

Answer 1

Answer:

Your answer is

Step-by-step explanation:

Let the marks in maths be x

65+50+55+x/4=60

170+x=240

x=240-170

x=70

So marks scored by him in mathematics are 70

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Answer 2

The marks scored by the student in Mathematics is 70

Given :

• A student scored 65 marks in first language , 50 marks in science , 55 marks in Social science and some marks in Mathematics .

• The average marks scored by him in all the four subjects is 60

To find :

The marks scored by the student in Mathematics

Solution :

Step 1 of 3 :

Calculate total marks obtained in four subjects

Here it is given that average marks scored by the student in all the four subjects is 60

So the total marks obtained in four subjects

= 4 × 60

= 240

Step 2 of 3 :

Calculate the total marks obtained in three subjects

It is given that the student scored 65 marks in first language , 50 marks in science , 55 marks in Social science

So total marks obtained in three subjects

= 65 + 50 + 55

= 170

Step 3 of 3 :

Calculate marks scored by the student in Mathematics

Hence marks scored by the student in Mathematics

= Total marks obtained in four subjects - Total marks obtained in three subjects

= 240 - 170

= 70

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