Question

solve this problem with solution please

Answer 1

y=4x and x+y=10
5x=10, x=2
and y=8

Answer 2

let the digit in tens place be y and that at the unit place be x.
THE NUMBER BECOMES = 10(X)+Y
ATQ,CASE1
four times digit of units place=
y=4x

ATQ, CASE 2
X+Y=10--------(1)

NOW, SUBSTITUTING THE VALUE OF Y IN EQUATION 1

X+4X=10
5X=10
X=10/5=2

NOW PITTING THE VALUE OF X IN THE VALUE OF Y=4X
Y=4(2)=8

THEREFORE THE NUMBER IS 10(2)+8=20+8=28

HOPE IT HELPS YOU.
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