Question

solve it pls and explain do not spam.​

Answer 1

Answer:

70.

For explanation kindly refer the attachment.

Answer 2

$\huge{\underline{\underline{\mathfrak{\pink{AnSwEr࿐}}}}}$

$\large\bold{given \: that \: :-}$

A student scored in 1 Language = 65 marks

scored in Science = 50 marks

scored in Social Science = 55 marks

And the Average Marks scored by him in all subjects = 60 marks

$\large\bold{To \: find :- }$

The Marks scored by him in Mathematics.

$\large\bold{so,}$

$\large\bold{average = }\bold{ \frac{ total \:\:sum \: of \: all \: numbers}{number \: of \ \: items \: in \: the \: set}}$

$\large\bold{now}$

Let the marks scored by him in maths be 'x'

$\large\bold{According \: to \: the \: question,}$

$\large\bold{average = }\bold{ \frac{ total \:\:sum \: of \: all \: numbers}{number \: of \ \: items \: in \: the \: set}}$

$\large\bold{ = > \frac{65 \: + \: 50 \: + 55 \: + \: x \: \: }{4} } \: = 60$

$\large\bold{ = > \frac{170 \: + \: x}{4} = 60}$

$\large\bold{ = > 170 \: + \: x = 60 \times 4} \:$

$\large\bold= > {170 \: + x \: = 240}$

$\large\bold{ \: = > \: x \: = 240 \: - 170 }$

$\large\bold{ = > \: x \: = 70 }$

$\large\bold{Hence,}$

The marks Scored by him in maths is 70 .

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