A blacksmith has five iron articles A, B, C, D and E, each having a different weight. (i) A weights twice as much as B. (ii) B weights four and a half times as much as C. (iii) C weights half as much as D. (iv) D weights half as much as E. (v) E weights less than A but more than C.
Which of the above given statements is not necessary to determine the correct order of articles according to their weights ?
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 ?