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    1. Home
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    3. Quantitative Aptitude
    4. Mensuration
    5. Find the minimum length of a rubber band which can tie three circular pipe of radius 21 cm?

    Question

    Find the minimum length of a rubber band which can tie

    three circular pipe of radius 21 cm?
    A 172 cm Correct Answer Incorrect Answer
    B 258 cm Correct Answer Incorrect Answer
    C 192 cm Correct Answer Incorrect Answer
    D 126 cm Correct Answer Incorrect Answer

    Solution

    length of arc. = θ/180 × π × r  = 120/180 × 22/7 × 21 × 3 = 132 cm (take approximate value) Minimum length of rubber band = (42 + 42 + 42) + 132 = 258 cm

    Practice Next
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