The four-digit numeral 3AA1 is divisible by 9. What digit does A represent?
5 answers
I just substituted in numbers from 0-9 to see what the answer was. "3AA1 is divisible by 9" means that the problem 3AA1 divided by 9 will equal an integral number. So, once you substitute in numbers you'll find that 3,771 divided by 9 equals 419, so A = 7. Hope this makes sense!
nv,cm f
i thought that a number divisible to 9 has to have the number's digit add up to 9, like 9, 18, 27, 36, 45, 63, 72, 81
the numbers 2 4 6 and 8 are a set of four consecutive even numbers. Suppose the sum of five consecutive even numbers is 320. What is the smallest of the of the five numbers.
What is the formula? and how did you get the answer 7?
1 answer