Suppose that the directions are rotated so that north points to where…

2013

Suppose that the directions are rotated so that north points to where south-east was initially. Which direction does west point to?

  1. A.

    North-West

    उत्तर-पश्चिम

  2. B.

    South-West

    दक्षिण-पश्चिम

  3. C.

    North-East

    उत्तर-पूर्व

  4. D.

    East

    पूर्व

Attempted by 4 students.

Show answer & explanation

Correct answer: C

Step 1: Initially, the directions are: North = 0°, East = 90°, South = 180°, West = 270°. South-east is at 135°.

Step 2: The rotation moves south-east (135°) to where north (0°) was. This is a 135° clockwise rotation.

Step 3: Apply the 135° clockwise rotation to west (270°): 270° + 135° = 405°.

Step 4: Since 405° is more than 360°, subtract 360°: 405° - 360° = 45°.

Step 5: 45° corresponds to the north-east direction.

हिन्दी उत्तर:

चरण 1: शुरू में दिशाएँ हैं: उत्तर = 0°, पूर्व = 90°, दक्षिण = 180°, पश्चिम = 270°। दक्षिण-पूर्व 135° पर है।

चरण 2: घुमाव दक्षिण-पूर्व (135°) को उत्तर (0°) की जगह ले जाता है। यह 135° दक्षिणावर्त घुमाव है।

चरण 3: पश्चिम (270°) पर 135° दक्षिणावर्त घुमाव लागू करें: 270° + 135° = 405°।

चरण 4: चूँकि 405° 360° से अधिक है, 360° घटाएँ: 405° - 360° = 45°।

चरण 5: 45° उत्तर-पूर्व दिशा को दर्शाता है।

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