Question

if a number is interchanged and it is subtracted then the answer is 20, twice the original number is thrice the interchanged number if the original number is five times the. how much the interchanged number will be. ​

Answer 1

here's ur answer

So, the number may be written as 10x+y.

According to the given condition.

10x+y=6(x+y)+3⇒4x−5y=3          

If we interchange the digits of Original number then we get new number. i.e 10y+x

According to the given condition

10y+x+18=10x+y

10y+x+18=10x+y⇒9x−9y=18⇒x−y=2              

Now multiplying equation (ii) by 4. we get,

Now multiplying equation (ii) by 4. we get,4x−4y=8         

On subtracting (iii) from (i). we get,

On subtracting (iii) from (i). we get,4x−5y−(4x−4y)=3−8

On subtracting (iii) from (i). we get,4x−5y−(4x−4y)=3−8∴y=5

On substituting y=5 in (ii). we get,

On substituting y=5 in (ii). we get,x−5=2⇒x=7

∴ number is 10x+y=

10(7)+5=75

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Answer 2

Answer:

75 is the answer

hope it helps you