DU • ঢাকা বিশ্ববিদ্যালয় আইবিএ (বিবিএ) ভর্তি পরীক্ষা ২০০৭-২০০৮

প্রশ্ন ও সমাধান

All combination locks manufactured by the Gulzar Combination Lock Company have a combination that consists of four elements a one-digit number, a two-digit number, and two letters of the alphabet. Each combination conforms to the following rules.i. The one-digit number is the first element in the combination.ii. The two letters of the alphabet are not adjacent elements in the combination.iii. The two-digit number consists of two different numerals.iv. The two-digit number has no numerals in common with the one-digit number.Which of the following must always be true of a combination?

  1. ক

    The second element is a two-digit number.

  2. খ

    The third element is a letter of the alphabet.

  3. গ

    The third element is a one-digit number.

  4. ঘ

    The fourth clement is a two-digit number.

  5. ঙ

    The fourth element is a letter of the alphabet.

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