Ashish leaves his house at 20 minutes to seven in the morning, reaches Kunal`s house in 25 minutes, they finish their breakfast in another 15 minute and leave for their office which takes another 35 minutes, At what time do they leave Kunal`s houses to reach their office ?

B. 7.20 A.M.

(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 ?

D. FOUR

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

D. THREE