Verbal Reasoning - Arithmetic Reasoning - Discussion

Discussion :: Arithmetic Reasoning - Section 1 (Q.No.11)

11. 

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

Answer: Option C

Explanation:

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.


Dasharath said: (Jan 7, 2012)  
I didn't get this point explain be clearly.

Sujit Chowra said: (Jul 30, 2013)  
Given A= B+3, and C = A+3.

C = B+3+3, C= B+6 here B = D So, 6 years older C than D.

Sanjay said: (Jun 7, 2016)  
I am not understanding this clearly.

What said: (Jun 27, 2016)  
Not getting this. Can anyone help me to get it?

Gtaja said: (Jul 10, 2016)  
I couldn't get this. Help me to understand this.

Chris said: (Dec 2, 2016)  
Easiest way for me to solve this was by doing the following:

A - 3 = B and A + 3 = C, B = D. Let A = 14
14 - 3 = B, so B = 11, therefore D = 11 as B = D
14 + 3 = C, so C = 17. 17(C) - 11(D) = 6, therefore, C is 6 years older than D.

Srikanth said: (Jan 22, 2017)  
I didn't get it. Someone help me by the explanation.

Jamel Telesford said: (Jun 19, 2017)  
Is there a way for you to do this with only one variable?

Jayanthi said: (Mar 20, 2018)  
A=B+3........(1)
A=B-3..........(2)
B=D...............(3)
B+3=B-3,
B=-3-3,
B=6,
6=D,
both D and C are 6.

Avani said: (Dec 15, 2019)  
Assume a random number for A.

Let it be A = 10.

Then B will be 7 (A is 3 years older than B is given in question).

Then C will be 13 (A is younger than C by 3 Years is also given).

Since B = D. Find different between B and C.

ie, 13-7 = 6.

Hence we get the diff of C and D = 6.

Post your comments here:

Name *:

Email   : (optional)

» Your comments will be displayed only after manual approval.