Hello!
tommorow is my maths paper pls quickly send me the solution for this
P.S wish me luck
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hey buddy!!
Let numbers be x at onces place & y at tens place so,
10y+x is the digit.
Reversed digit =10x+y
According to the question ,
∴7(10y+x)=4(10x+y)
⇒x=2y⟶(i)
Now,
Given , x−y=3
from equation (i)2y=x substitute in above equation.
2y−y=3
y=3
So ,
x=2y=2⋅3=6
∴ Required original no: is =10y+x=10⋅3+6=36.
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