Respuesta :

ipgill1631

Answer:

Let x= Maths marks

and y= English marks

Step-by-step explanation:

x + y = 163

x - y = 31

-(x-y) = -(31)

.: 2y = 132

y = 66

.: x - 66 = 31

x = 31 + 66 = 97

.: maths marks= 97

English marks= 66

jaimyrenji

Answer:

Step-by-step explanation:

LET MATHS MARKS BE X AND ENGLISH BE Y

GIVEN,

X+Y =163...........1

X-Y=31............2

FROM 1 AND 2 ,

2X=194

X= 97

Y=66

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