The digit 3 is written at the right of a certain two-digit number thus forming a three-digit number. The new number is 372 more than the original two-digit number. What was the original two-digit number? my answer is 94?
The digit 3 is written at the right of a certain two-digit number thus forming a three-digit number. The new number is 372 more than the original two-digit number. What was the original two-digit number? my answer is 94?
Let x be the original two-digit number. Then, the new number is:
. Now, we know that
Solving this gives us:
How did you arrive at 94? You should have easily noted that if you modify the number as stated you get 943, which is obviously not 372 more than 94.
The digit 3 is written at the right of a certain two-digit number thus forming a three-digit number. The new number is 372 more than the original two-digit number. What was the original two-digit number? my answer is 94?
Let the original number be 10x +y with and
Then the 3-digit-number is 100x+10y+3.
According to the wording of the question you get:
The only possible value for x = 4 and y = 1. Thus the original number is 41.