Question
The product of two 2 digit numbers, plus a number is 3555 (8,1,4,7,3) without repetition. What is the number
Answers
oobleck
the 2-digit numbers are both odd and the 3rd number is even, or
one or both of the 2-digit numbers is even, and the 3rd number is odd.
81*47 = 3807
87*41 = 3567
78*43 = 3354
so, 78*43+1 = 3355
one or both of the 2-digit numbers is even, and the 3rd number is odd.
81*47 = 3807
87*41 = 3567
78*43 = 3354
so, 78*43+1 = 3355