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Relative ages (chain of differences): Determine how many years older C is than D. Relations: A is 3 years older than B and 3 years younger than C. B and D are twins (same age). Find C − D (years older). Choose the correct value.

Q: Relative ages (chain of differences): Determine how many years older C is than D. Relations: A is 3 years older than B and 3 years younger than C. B and D are twins (same age). Find C − D (years older). Choose the correct value.

Let ages Let B = D (twins). Then A = B + 3 and C = A + 3 = B + 6. Difference C − D = (B + 6) − B = 6.

Difficulty: Easy

Correct Answer: 6

Explanation:

Let ages
Let B = D (twins). Then A = B + 3 and C = A + 3 = B + 6.

Difference
C − D = (B + 6) − B = 6.

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