Question

step by step needed ​

Answer 1

Step-by-step explanation:

Average marks of Maths and English = 70

Average marks of Maths and Science = 60

English Marks = 55

Let Math marks be x

As per given:

$\frac{x + 55}{2} = 70 \\ x + 55 = 70 \times 2 \\ x + 55 = 140 \\ x = 140 - 55 \\ x = 85$

So math marks are 85.

Let science be y

As per given

(y + 85)/2 = 60

y + 85 = 60 × 2

y + 85 = 120

y = 35

So, science marks are 35

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