### Brain Teasers

# Find the Number

The number has 5 digits.

a: the first and the third digit are the same, all others are different.

b: the highest digit is 7 and the lowest is 1.

c: the third digit is twice as much as the fourth.

d: the second digit is higher than the fifth.

e: the sum of the five digits is 23.

What is the number?

a: the first and the third digit are the same, all others are different.

b: the highest digit is 7 and the lowest is 1.

c: the third digit is twice as much as the fourth.

d: the second digit is higher than the fifth.

e: the sum of the five digits is 23.

What is the number?

### Answer

67631Because of 'a' and 'c' there are three possibilities:

2-21- (with 7 and 6 we only get 18)

4-42- (with 7 and 1 (b) we get 18)

6-63- (b says we need a 7 and a 1, and d shows the position.)

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