Dave is d years old. Tracy is twice Dave's age. What is Tracy's age, in terms of d ?

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Multiple Choice

Dave is d years old. Tracy is twice Dave's age. What is Tracy's age, in terms of d ?

Explanation:
Twice means two times. If Tracy is twice Dave's age and Dave is d years old, Tracy's age is 2 × d, which is 2d. The other options would represent different relationships (d is equal to Dave, d/2 is half of Dave, and 3d is triple Dave’s age), so 2d is the correct expression for Tracy’s age.

Twice means two times. If Tracy is twice Dave's age and Dave is d years old, Tracy's age is 2 × d, which is 2d. The other options would represent different relationships (d is equal to Dave, d/2 is half of Dave, and 3d is triple Dave’s age), so 2d is the correct expression for Tracy’s age.

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