Question

A number consists of two digits whose sum is 10. if 18 is added to the number then the digits change their places . find the number
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Answer 1

Answer:

35

Step-by-step explanation:

Let one of the digit of the two digit number is x.

then problem other number is (8−x)

So,we get the equation

10x+(8−x)+18=10(8−x)+x

10x+8−x+18=80−10x+x

9x+26=80−26

18x=54

x=

18

54

x=3

Then,

The digit in tens place is 3

The digit in ones place is (8−3=5), then the number is 35 and when 18

is added the result is 53 the digits interchange their position in the new number.

Then,

We get the number is 35

Answer 2

Step-by-step explanation:

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