Question

If the digits of a two-digit number are interchanged, the number so formed is 18 more than the original number. The sum of digits is 8. What is the thrice value of original number? METHODS

Answer 1

Answer:

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As given,

10y + x-10x-y=18

=> 9(y -x) = 18

=>y-x = 2....(1)

Again, x + y = 8 ...(ii)

From (i) and (ii)

2y = 10

=>y = 5

\( \Large \therefore \)x = 3 [from(i)]

Number=10x + y =\(\Large 10 \times 3 \)+ 5 = 35

Answer 2

Answer:

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