Subject

    Bank Exam

    Topic

    Bangladesh Bank 2016 (Cash Officer)

    A hard nut to crack is-

    ক)
    One who is very obstinate
    খ)
    very difficult child
    গ)
    problem that is hard to be solved
    ঘ)
    a walnut or a fruit

    Explanation

    A hard nut to crack=problem that is hard to be solved=সমস্যা যা সমাধান করা কঠিন

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