Multiple Choice Questions on A tree increases annually by 1 8th of its height By how much will it increases after 2 years if it s........... for Punjab Naib Tehsildar Exam Preparation

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Multiple Choice Questions

A tree increases annually by 1 8th of its height By how much will it increases after 2 years if it s...........

Mental Ability (N tehsildar) Compound Interest
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    A tree increases annually by 1/8th of its height. By how much will it increases after 2 years, if it stands today 64 cm high?

    72 cm

    Incorrect Answer

    74 cm

    Incorrect Answer

    75 cm

    Incorrect Answer

    81 cm

    Correct Answer
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    Explanation:

    Present height of the tree = 64 cm
    Height after 1 st year = 64 + (1/8 x 64) = = 64 + 8 = 72
    Height after 2 nd year = 72 + (1/8 x 72) = 72 + 9 = 81
    Hence, option 4 is the correct answer.

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