Select the most appropriate alternative as the answer. - You are playing in your friend's house,when he gets stuck with a nacked electric wire. You would :
How many 7's are there in the following series which are preceded by 6 which is not preceded by 8 ? 8 7 6 7 8 6 7 5 6 7 9 7 6 1 6 7 7 6 8 8 6 9 7 6 8 7
(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 ?