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A is 3 years older to B and 3 years younger to C, while B and D are twins. How many years older is C to D?
- a)2
- b)3
- c)6
- d)12
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
A is 3 years older to B and 3 years younger to C, while B and D are tw...
Since B and D are twins, so B = D.
Now, A = B + 3 and A = C - 3.
Thus, B + 3 = C - 3
D + 3 = C - 3 
C - D = 6.
Now, A = B + 3 and A = C - 3.
Thus, B + 3 = C - 3
D + 3 = C - 3 C - D = 6.Most Upvoted Answer
A is 3 years older to B and 3 years younger to C, while B and D are tw...
Given information:
- A is 3 years older than B.
- A is 3 years younger than C.
- B and D are twins.
To find: How many years older is C to D?
Let's analyze the given information step by step:
1. A is 3 years older than B:
- Let's assume B's age as x.
- Therefore, A's age will be x + 3 (as A is 3 years older than B).
2. A is 3 years younger than C:
- Let's assume C's age as y.
- Therefore, A's age will be y - 3 (as A is 3 years younger than C).
3. B and D are twins:
- This means B and D have the same age.
- Let's assume their age as z.
Now, we can equate the ages of A in both cases:
x + 3 = y - 3
Simplifying the equation, we get:
x - y = -6 ...(1)
Since B and D are twins, their ages are the same:
x = z ...(2)
To find the age difference between C and D, we need to find the difference between their ages:
C - D = y - z
Now, let's substitute the value of x from equation (2) into equation (1):
z - y = -6
Rearranging the equation, we get:
y - z = 6
Comparing this equation with C - D = y - z, we can conclude that C is 6 years older than D.
Therefore, the correct answer is option (c) 6.
- A is 3 years older than B.
- A is 3 years younger than C.
- B and D are twins.
To find: How many years older is C to D?
Let's analyze the given information step by step:
1. A is 3 years older than B:
- Let's assume B's age as x.
- Therefore, A's age will be x + 3 (as A is 3 years older than B).
2. A is 3 years younger than C:
- Let's assume C's age as y.
- Therefore, A's age will be y - 3 (as A is 3 years younger than C).
3. B and D are twins:
- This means B and D have the same age.
- Let's assume their age as z.
Now, we can equate the ages of A in both cases:
x + 3 = y - 3
Simplifying the equation, we get:
x - y = -6 ...(1)
Since B and D are twins, their ages are the same:
x = z ...(2)
To find the age difference between C and D, we need to find the difference between their ages:
C - D = y - z
Now, let's substitute the value of x from equation (2) into equation (1):
z - y = -6
Rearranging the equation, we get:
y - z = 6
Comparing this equation with C - D = y - z, we can conclude that C is 6 years older than D.
Therefore, the correct answer is option (c) 6.
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A is 3 years older to B and 3 years younger to C, while B and D are twins. How many years older is C to D?a)2b)3c)6d)12Correct answer is option 'C'. Can you explain this answer?
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