EduGoog

In Time Sequence questions, you are given a question based on date and time. It is required to find out either date or no. of days satisfying conditions in specific question.

(I).   Kamal is available at home from 12 noon to 4 p.m. on Tuesday, Thursday and Sunday.
(II).  His younger brother Navin is available at home on Monday, Thursday, Friday and Sunday between 10 a.m. to 2 p.m.
(III). The eldest brother Rajiv is available between 9 a.m. to 12 noon on Monday, Wednesday and Thursday and 2 p.m. to 4 p.m. on Friday, Saturday and Sunday.

On which day(s) of a week, the youngest and the eldest brothers are available at home at the same time ?

Option:
A. Only Monday
B. Only Thursday
C. Only Friday
D. Both Monday and Thursday
E. Both Sunday and Friday
Answer: D . Both Monday and Thursday

Justification:

We prepare a table as under :

  Mon Tue Wed Thu Fri Sat Sun
9 a.m. to 10 a.m. R   R R      
10 a.m. to 12 noon N, R   R

N, R

N   N
12 noon to 2 p.m. N K   K, N N   K, N
2 p.m. to 4 p.m.   K   K R R K, R

Clearly, Navin and Rajiv are available at home at the same time on Monday and Thursday.

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