general Maths Puzzle

A railway track runs parallel to a road until a bend brings
the road to a level crossing. A cyclist rides along to work along the
road every day at a constant speed of 13 miles per hour. He normally
meets a train that travels in the same direction at the crossing. One
day he was late by 20 minutes and met the train 7 miles ahead of the level crossing. Can you figure out the speed of the train?

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general Other Question

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S, M, H, D, W, ?, ?
My Friend bought a used pressure cooker for Rs.70. She somehow did not find it useful and so when a friend of hers offered her Rs.80 she sold it to her. However, she felt bad after selling it and decided to buy it back from her friend by offering her Rs.90. After having bought it once again she felt that she did not really need the cooker. So she sold it at the auction for Rs.100.

How much profit/loss did she make?