Aptitude - Problems on Ages - Discussion
Discussion Forum : Problems on Ages - General Questions (Q.No. 14)
14.
Q is as much younger than R as he is older than T. If the sum of the ages of R and T is 50 years, what is definitely the difference between R and Q's age?
Answer: Option
Explanation:
Given that:
1. The difference of age b/w R and Q = The difference of age b/w Q and T.
2. Sum of age of R and T is 50 i.e. (R + T) = 50.
Question: R - Q = ?.
Explanation:
R - Q = Q - T
(R + T) = 2Q
Now given that, (R + T) = 50
So, 50 = 2Q and therefore Q = 25.
Question is (R - Q) = ?
Here we know the value(age) of Q (25), but we don't know the age of R.
Therefore, (R-Q) cannot be determined.
1. The difference of age b/w R and Q = The difference of age b/w Q and T.
2. Sum of age of R and T is 50 i.e. (R + T) = 50.
Question: R - Q = ?.
Explanation:
R - Q = Q - T
(R + T) = 2Q
Now given that, (R + T) = 50
So, 50 = 2Q and therefore Q = 25.
Question is (R - Q) = ?
Here we know the value(age) of Q (25), but we don't know the age of R.
Therefore, (R-Q) cannot be determined.
Discussion:
60 comments Page 5 of 6.
Red said:
1 decade ago
Q and R are of the same age if you observe closely.
So Q = R.
R plus T is equal to 50 same as T plus Q.
So Q = R.
R plus T is equal to 50 same as T plus Q.
Mounika said:
1 decade ago
The difference of age b/w R and Q = The difference of age b/w Q and T.
Where is this given in question?
Where is this given in question?
Hemant said:
9 years ago
Here we check with 15, 25, 35 so,
35 + 15 = 50, and 25 - 15 = 35 - 25 = 10. Here we get all the ages.
35 + 15 = 50, and 25 - 15 = 35 - 25 = 10. Here we get all the ages.
RAVINDER said:
1 decade ago
R+T = 50.
T = 50-R.....(1)
R-Q = Q-T.
R-T = 2Q.
FROM EQ.1,
R-(50-R) = 2Q.
2R-2Q = 50.
R-Q = 25.
T = 50-R.....(1)
R-Q = Q-T.
R-T = 2Q.
FROM EQ.1,
R-(50-R) = 2Q.
2R-2Q = 50.
R-Q = 25.
Asif said:
5 years ago
The answer is 10 years because the given condition is possible for q=25,
R=35.
And
T = 15.
R=35.
And
T = 15.
Purnendu Paul said:
9 years ago
Hello @Mounika.
Read the first sentence carefully, then you will get the concept clearly.
Read the first sentence carefully, then you will get the concept clearly.
Sudheer said:
1 decade ago
Can anyone explain why they took r-q = q-t? In the question they didn't gave as equal.
Vishranthee said:
1 decade ago
R=Q-x
Q=T-x
R+T=50
So x(which is the difference between R and Q) is 25.
Q=T-x
R+T=50
So x(which is the difference between R and Q) is 25.
Pavan said:
6 years ago
20,25,30 consider and calculate.
So, the Answer will be 10 years.
So, the Answer will be 10 years.
Roshan/Dev said:
1 decade ago
Very good sweta and deepak. Excellently fantabulous.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers