Biking With Wind | PuzzledQuant

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New on YouTube: This HRT Quant Interview Question Has a One-Line Answer - Watch now

⚡ Build the skills to land top-paying quant jobs. Offer ends in 25d 09h 49m 28s25 days 9 hours 49 minutes 28 seconds.

You bike along a straight road from your house to the supermarket and back along the same road.

On Monday there was no wind and you rode at a constant 20 km/h; the round trip took 30 minutes.
On Tuesday there is a 5 km/h wind blowing from the supermarket towards your house. You put in the same effort, so your speed relative to the air is again 20 km/h.

How many minutes does the round trip take on Tuesday? Give the answer in minutes.

You bike along a straight road from your house to the supermarket and back along the same road.

On Monday there was no wind and you rode at a constant 20 km/h; the round trip took 30 minutes.
On Tuesday there is a 5 km/h wind blowing from the supermarket towards your house. You put in the same effort, so your speed relative to the air is again 20 km/h.

How many minutes does the round trip take on Tuesday? Give the answer in minutes.