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Examoogle • User • info@examoogle.com • EE-2024-8821
Chapter 1 of 12 • Page 1 of 248🔒 Protected PDF • Watermarked
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V, W, X, Y మరియు Z అనే ఐదుగురిలో, ప్రతి ఒక్కరికి ఒక నిర్దిష్ట వయస్సు ఉంది. X వయస్సు Y వయస్సుకి నాలుగు రెట్లు. V వయస్సు X వయస్సుకి సమానం. Y వయస్సు Z వయస్సులో మూడింట ఒక వంతు. W వయస్సు V వయస్సులో సగం. Z వయస్సు 12 అయితే, W వయస్సు ఎంత?
15
4
8
6
8
Map all ages to a single variable (Y) based on the relationships provided: X=4Y, V=4Y, Z=3Y, W=V/2=2Y. Since Z=12, Y=4, therefore W=2(4)=8.
Map all ages to a single variable (Y) based on the relationships provided: X=4Y, V=4Y, Z=3Y, W=V/2=2Y. Since Z=12, Y=4, therefore W=2(4)=8.
Establish Y as the Base Variable
Given Z = 12. Since Y is one-third of Z, Y = 12 / 3 = 4.
Determine X and V
X is four times Y, so X = 4 * 4 = 16. Since V's age equals X, V = 16.
Calculate W
W is half the age of V, so W = 16 / 2 = 8.
A: 15 is incorrect as it does not follow the derived relationships. B: 4 is the age of Y, not W. D: 6 is an arbitrary value not supported by the equations.
C is correct because according to the provided ratios, if Z=12 then Y=4, X=16, V=16, and W = V/2 = 8.
In age-related problems, always express all variables in terms of one constant or the youngest member to simplify calculations.