How do you solve the question? Ryan gave 7 of his cars to a friend. Then he bought 6 more cars. Now Ryan has 13 cars. How many c
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I suppose you want to know such number. Since we have a two digit number consisting of two consecutive integers, the only possible numbers are:
Since we sorted all the cases out, we simply have to check which one satisfies the requirement. For each number, we'll write four times the the sum of its digits, and add 6, hoping to get the original number.
So, the answer is 34.