11th Class Mathematics Sample Paper Maths Olympiad Model Paper-9

  • question_answer
    A person standing on the bank of a river observes that the angle subtended by a tree on the opposite bank is \[60{}^\circ \]. When he steps back 40 metres from the bank, he finds the angle to be\[30{}^\circ \]. The breadth of the river is.

    A)  20 m

    B)  30 m

    C)  40 m                           

    D)  60 m

    E)  None of these

    Correct Answer: A

    Solution :

     Not Available               

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