SOLUTION: Mr.Smith has three daughters who go to school.The two daughters aged 6 and 10 years old are given 90.00 and 150.00 per day allowance respectively. Applying the same ratio on the a

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Question 951748: Mr.Smith has three daughters who go to school.The two daughters aged 6 and 10 years old are given 90.00 and 150.00 per day allowance respectively. Applying the same ratio on the allowance, how much does he need to give to her 12 years old daughter?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
+6%2F10+=+3%2F5+
+3%2F5+=+9%2F15+
+9%2F15+=+90%2F150+
So they are given allowance in the
same ratio as their ages
I can say:
+6%2F12+=+90%2Fx+
+3%2F6+=+90%2Fx+
+9%2F18+=+90%2Fx+
+90%2F180+=+90%2Fx+
+x+=+180+
The 12 yr old gets $180 / day