Blowing in the wind

On Monday Dolce rides an airplane that flies in a straight line from Delhi to Kolkata, then flies back in a straight line from Kolkata to Delhi. The plane travels with a constant engine speed and there is no wind. Tuesday she makes the same round trip in the same plane with same engine speed. But this time throughout both flights, a constant wind blows from Delhi to Kolkata. Will her travel time on Tuesday be greater, less, or the same?


Ans