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WorksheetsVARIATION
Total questions: 15
Worksheet time: 26mins
If x varies inversely as the square root of y, and x = 9 when y = 121, find x when y = 81.
7
11
13
17
If y varies inversely as x, and y = 23 when x = 8, find y when x = 4.
26
46
52
92
If x varies inversely as y, and x = 3 when y = 8, find y when x = 4.
3
6
9
12
If 32 men can reap a field in 15 days, in how many days can 20 men reap the same field?
18 days
20 days
22 days
24 days
y varies inversely with x. If y = 40 when x = 16, find x when y = -5.
-64
-128
-256
-512
If y varies directly as x and inversely as z, and y = 24 when x = 48 and z = 4, find x when y = 44 and z = 6.
126
132
148
154
If f varies directly as g and inversely as the square of h, and f = 20 when g = 50 and h = 5, find f when g = 18 and h = 6.
4
5
8
10
If y varies jointly as a and b and inversely as the square root of c, and y = 12 when a = 3, b = 2, and c = 64, find y when a = 5, b = 2, and c = 25.
8
16
24
32
The time it takes you to complete a puzzle is directly proportional to the number of pieces and inversely proportional to how many people are working on it. You and your three friends can complete a 1,000 piece puzzle in 2 hours. How long would it take you to complete a 2,500 piece puzzle?
8 hours
9 hours
10 hours
11 hours
The number of minutes needed to solve an exercise set of variation problems varies directly as the number of problems and inversely as the number of people working on the solutions. It takes 4 people 36 minutes to solve 18 problems. How many minutes will it take 6 people to solve 42 problems.
56 minutes
52 minutes
48 minutes
44 minutes
