Puzzle 36

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 Today I have a simple puzzle and a bonus puzzle.

    Can you get 10 using the numbers 1 1 5 and 8. You have to use all numbers. You can use any operator.

Bonus puzzle :

  Tom wants to travel from San Francisco to  Los Angeles and back - a round trip -  with an average speed of 50 mph. If you are feeling very patriotic change the name of the person to Suresh and cities to Delhi and Agra. 

Due to traffic, he could travel only at 25 mph on the way to Los Angeles. What must be his speed on return journey in order to get an average speed of 50 mph.

Believe me, the solution is really interesting. 

By the way, if you like numbers, you may love my app Shataka. Give it a try. 

 You will find the solution to both the puzzles here. 

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