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 ?

A. 7.40 a.m.
B. 7.20 a.m.
C. 7.45 a.m.
D. 8.15 a.m.
E. 7.55 a.m.
Answer: B . 7.20 a.m.

Justification: Ashish leaves his house at 6.40 a.m. He reaches Kunal`s in 25 minutes i.e. 7.05 a.m. Both leave for office 15 minutes after 7.05 a.m. i.e. at 7.20 a.m.