Question

I am a three-digit number. I am divisible by 6. My middle digit is a prime number. The sum of my digits is 9. I am between 400 and 500. My digits are in descending order. What number am I? Show your working.

Answer 1

Answer:

As the number is between 400 and 500 the hundreds digit will be 4 , That means , 4xx

The middle digit is a prime number , the prime numbers between 1 to 9 are

2 , 3 , 5 , 7 So ,

42x , 43x , 45x , 47x

The digits are in descending order so when it comes to descending order

43x

The sum of digits is 9 So ,

4 + 3 + x = 9 - 7 = 2

So the number is 432

Step-by-step explanation:

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