Question

Alex's friend Grace drops her every day to work
in the morning to her office, but cannot help to
drop her back home in the evening.
She walks back home from work every day.
But after a few days, as a reward of her sincerity
in work, her boss offered her a metro pass. Now
she needs to walk only from her office to a
nearby metro station and from a station nearby
her house to her house.
Following this routine, she walks 1/8th times
less than before.
Assume that she always walks with the same
speed, she reached home 15 minutes earlier
than usual.
If the time she traveled in the metro (apart from
her walking) is 5 minutes, what is the total
amount of time she used to walk in her older
routine (without taking the metro)?​

Answer 1

Answer:

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