FRAME NUMBER 13
LEVEL A
Let's try and solve more difficult problems. The sum of two numbers having a ratio of I to 3 is
32. What are the numbers?
Solution: Let X represent the smaller number and 3X the larger number. X + 3X = 32. 4X = 32, X =
8; then 3X = 24.
Check: Does 8 + 24 = 32? Yes.
Solve this problem: Sum of two numbers having a ratio of 4 to 7 is 99. What are the numbers?
a. Smaller number______________ b. Larger number______________
FRAME NUMBER 26
LEVEL B
Example of inverse proportion: "Six workmen completed a job in 10 days. It will take 15
workmen 4 days to do the same Job. This is an inverse proportion because an increase in workmen will
the number of days.
FRAME NUMBER 39
LEVEL C
The distance between two points on a 1:12,500 scale map is 14.1 inches. What is the distance between
the same two points on a 1:23,500 scale map?
Express answer in inches.
27
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