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1. C lives on the third numbered floor. 2. Only two persons live between the floors of C and O. 
3. Only one person lives between the floors of M and N. 4. M lives above N. 
5. Only one person lives between the floors of C and D. 6. C lives on one of the floor below the floor of M. 7. P lives on the floor immediately above the floor on which B lives. 
There is no space for P and B in CASE1A so CASE1A is cancelled out. Final arrangement: 
The average age of 26 children and their teacher's age are 22 years. If the teacher's age is excluded, the average reduces by 1. What is the teacher's age?
B is 2 years older than A and A is 5 years older than C. If the sum of the age of A and C is 25 years, then find the sum of the ages of all three.
Age of ‘A’ after 8 years will be three time of his age 20 years ago. Eight years hence from now, ratio of ages of ‘A’ and ‘B’ will be 2:3, r...
A is 2 years older than B while C is 3 years younger than B. The ratio of age of A, 5 years hence and age of B, 4 years ago is 5:4. What was age of C, 1...
The ages of A and B are in the ratio 5:7. If the sum of their ages is 72 years, what will be A's age after 6 years?
Sum of the present ages of A, B, C and D is 65 years. After 4 years ratio of their ages is 6:5:4:3. What is C’s present age?
The combined average age of M, F, and S was 54 years when S got married. After 6 years, an infant was born. The average age of the family, 12 years post...
The current age of Derek is twice that of Eve. 7 years from now, Derek's age will be 1.5 times the age of Fred at that time. If Eve is 5 years younger t...
The average of present ages of Rajesh and his father is 45 years. The age of Rajesh 5 years hence from now will be 1/4 of the pre...
The present age of A is 7/5 times to that of his marriage age. Present age of his brother is 1/2nd of his present age. If A was married 20 years ago the...
