Question

The product of two two digit numbers is 1431. The product of their ten's digit is 10 and the product of their unit's digits is 21. Find the number.

Answer 1

Answer:

53

and 27

Step-by-step explanation:

digits has to be whole numbers from 1 to 9

•product of their ten's digit is 10

only possibility is ten's digits are 5 and 2

•also, product of their unit's digits is 21

only possibility is unit's digits are 7 and 3

•now the numbers could be 57 and 23 or 53 and 27

•we know that product of the two numbers is 1431,

53×27 = 1431

therefore the numbers are 53 and 27

Answer 2

Answer:

57 and 23

Step-by-step explanation:

10=2,5

21=3,7

57×23=1431