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  • Crossing a river with tiger, goat and grass?

    Suppose you are a boatman and you want to carry 3 things across the river, from bank A to bank B. The three are: a tiger, a goat and a bail (bundle) of grass. Conditions:

    -You can carry only one thing at a time in each direction.

    -Tiger will not eat you. But as we know, tiger will eat goat or goat will eat grass if left alone on a bank.

    -You have to complete the transfer in a minimum number of trips.

    Show the number of trips with your logic.

    5 AnswersOther - Science1 decade ago
  • Find the number (a positive integer), that gives the following values:?

    1) If you divide the number by 6, the reminder is 5

    2) If you divide the number by 5, the remainder is 4

    3) If you divide the number by 4, the remainder is 3

    4) If you divide the number by 3, the remainder is 2

    5) If you divide the number by 2, the remainder is 1

    Find the lowest number (below 500) which meets the above criteria. Please explain how to get that number in least possible logical steps.

    4 AnswersMathematics1 decade ago
  • a) Why do all radioactive materials ultimately convert into lead?

    b) Why lead shield is used for protection against radiation?

    3 AnswersPhysics1 decade ago