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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.
For how many days only one brother is available at a particular time in a week ?
(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.
For how many days only one brother is available at a particular time in a week ?
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Solution
The correct option is D Four
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, One brother is available time on all seven days of the week.
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 |
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