Question

A number has four digits . Its last digit is twice the first digit .
Its second digit is three less than the third digit which is 6.
But if you add the last digit to the first, your answer will be twelve. What number is it?​

Answer 1

Answer:

4368

Step-by-step explanation:

since the last digit is twice the first we can say that

the first digit is x

and the last digit is 2x

since the third is 6 and the second digit is 3 less that the third means ;

the second digit = 6-3 = 3

and third digit is 6

now we have an equation

since the first and last digit = 12

means  x + 2x = 12

3x = 12

hence x = 4

therefore the first digit = 4

and the last digit is 4*2 = 8

answer is 4368

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