Sum of two numbers prime to each other is 20 and their L.C.M. is 99. What are the numbers?  Choose the correct choice from the following answers.
A) 8 and 12 B) 14 and 6 C) 19 and 1 D) 11 and 9 E) 12 and 9
As two numbers are prime, only two options satisfy ie option C and D.   but option C will not make the product of numbers i.e 99   ANSWER:11 and 9
<result>D</result>
Sum of two numbers prime to each other is 20 and their L.C.M. is 99. What are the numbers?