Question

In a two - digit number the units digit is four times the tens digit and the sum of the digits is 10.​

Answer 1

Let the units digit be x,

and tens digit be y,

x = 4y

x + y = 10

4y + y = 10

5y = 10

y = 10/5

y = 2

So, x = 4y = 4×2 = 8

Required number → 28

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Answer 2

Answer is in attachment....

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