0.1 of Carl's money is equal to 90% of Ahmad's money. What is the ratio of Carl's money to Ahmad's money?
0.1 of Carl's money = 110 of Carl's money
90% of Ahmad's money =
90100 of Ahmad's money =
910 of Ahmad's money
110 Carl's money is the same as
910 Ahmad's money. Make the numerators the same. LCM of 1 and 9 is 9.
1 x 910 x 9 of Carl's money =
9 x 110 x 1 of Ahmad's money
990 of Carl's money =
910 of Ahmad's money
Carl's money : Ahmad's money
90 : 10
(÷10)9 : 1
Answer(s): 9 : 1