Question 30
Optional bonus: printed scoring is +20 correct, −7 incorrect, 0 blank. The import keeps the positive points but not the penalty.
If the answer is not an integer, give the nearest integer. If the calculated answer has more than five digits, give its last five digits.
The straight road from Jack’s home to Ann’s home is 77 km long. Jack leaves his home at noon (12:00) for Ann’s home and immediately turns back on arrival. A little while after noon, Ann leaves for Jack’s home and likewise immediately turns back on arrival. Neither rests on the way. Ann arrives back home at 17:02. They first pass each other after Ann has travelled 12.5 km toward Jack’s home. They then continue to the other home and turn back. They pass each other again on their return journeys, 9.5 km from Ann’s home. At what time does Jack arrive back home? Give a four-digit time, for example 13:25 as 1325 or 17:54 as 1754.
If the answer is not an integer, give the nearest integer. If the calculated answer has more than five digits, give its last five digits.
The straight road from Jack’s home to Ann’s home is 77 km long. Jack leaves his home at noon (12:00) for Ann’s home and immediately turns back on arrival. A little while after noon, Ann leaves for Jack’s home and likewise immediately turns back on arrival. Neither rests on the way. Ann arrives back home at 17:02. They first pass each other after Ann has travelled 12.5 km toward Jack’s home. They then continue to the other home and turn back. They pass each other again on their return journeys, 9.5 km from Ann’s home. At what time does Jack arrive back home? Give a four-digit time, for example 13:25 as 1325 or 17:54 as 1754.