1 Answer
1682 views2 Answers
1296 views5 Answers
1185 views1 Answer
1141 views1 Answer
1046 views1 Answer
941 viewsAns will be 9 .
because 240/80=3 hr time
I come back with slow speed, it will be 240/40=6 hr
total time will be 3+6=9 hr is correct answer.
2 Answers
659 views2 Answers
604 views6 Answers
578 views4 Answers
564 views1 Answer
515 views2 Answers
514 views1 Answer
508 views