Write one digit on each side of 92 to make a four-digit multiple of 45. How many different solutions does this problem have?
Share
Write one digit on each side of 92 to make a four-digit multiple of 45. How many different solutions does this problem have?
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Answer:
45×65=2925
45×146=7920
there are only 2 multiples of 45 satisfying the condition
____________________
The given number is divisible by 5, only if the unit's digit is equal to '0' or '5' .
The given number is divisible by 9 ,only the sum of the digits is multiple of 9 or divisible by 9 .
_____________________
Therefore.,
♪••.