Question

Help me in solving this sum

Answer 1

Answer:

Step-by-step explanation:

let 2 digit no. be=x , so x+x=6, if 8 added x+x=6+8, ie. 2x =14, x=14\2, x=7

hope its correct

Answer 2

IT'S QUITE SIMPLE. FOLLOW MY STEPS GIVEN BELOW : -

LET, THE THE DIGIT AT UNIT'S PLACE BE 'x'

AND THE DIGIT AT TEN'S PLACE BE 'y'

THEREFORE,

THE TWO DIGIT NUMBER = 10y + x

AND THE NUMBER OBTAINED BY REVERSING THE DIGITS = 10x + y

HENCE FROM FIRST CONDITION,

x + y = 6 _____ 1.

AND FROM SECOND CONDITION,

10y + x + 8 = 10x + y

10y - y + x - 10x = -8

9y - 9y = -8 ____ 2.

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