Question

a number is facniting if adding the sum of digits and product of digits gives the same interseting number how many number fascinating from 10 to 20​

Answer 1

Answer:

1

Step-by-step explanation:

by your explination 19 is the only such number between 10 and 20.

given,

10x+y=xy+x+y.

9x=y.

substitute 1 in place of x.

y=9. the number will be 19.

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Answer 2

Answer:

There are no fascinating number from 10 to 20​

Step-by-step explanation:

Since, the numbers from 10 to 20,

11, 12, 13, 14, 15, 16, 17, 18, 19,

∵ A number is fascinating if adding the sum of digits and product of digits gives the same interesting number,

And, 1 + 1 = 2 ≠  1 × 1,

1 + 2 = 3 ≠ 1 × 2,

1 + 3 = 4 ≠  1 × 3,

1 + 4 = 5 ≠ 1 × 4,

1 + 5 = 6 ≠  1 × 5,

1 + 6 = 7 ≠ 1 × 6,

1 + 7 = 8 ≠  1 × 7,

1 + 8 = 9 ≠ 1 × 8,

1 + 9 = 10 ≠ 1 × 9,

Hence, there are no fascinating number from 10 to 20​.

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