Rita is standing facing south-east. First, she turns 135° clockwise. After that, she turns 90° anticlockwise. Then 45° clockwise, then 135° anticlockwise. In which direction is she facing now? MCQ with Answer and Explanation
Rita is standing facing south-east. First, she turns 135° clockwise. After that, she turns 90° anticlockwise. Then 45° clockwise, then 135° anticlockwise. In which direction is she facing now?
A. South-east
B. East
C. South
D. north-east
Answer: Option B
Solution (By JKExamLibrary)
Total turn = +135° (CW) - 90° (CCW) + 45° (CW) - 135° (CCW) = -45° (45° anticlockwise). Starting from South-East, a 45° anticlockwise turn puts her facing East.
Lopa and Kritika are sitting facing each other at the time of sunset. If Lopa's shadow falls on the right side of Kritika, then in which direction is Kritika facing?
Explanation:
At sunset, sun is in the west, shadows fall east. Lopa's shadow falls on Kritika's right. For Kritika's right to be east, Kritika must be facing north. (Lopa then faces south, and her shadow east falls on Kritika's right side.)
Jainav is initially facing a certain direction. Then she turns 90° clockwise, after that she turns 180° anticlockwise. Then she turns 135° anticlockwise. She finally turns 180° clockwise. Now she is facing north-east direction. In which direction was Jainav initially facing before turning?
Explanation:
Let clockwise turns be positive and anticlockwise be negative. Total turn = +90° - 180° - 135° + 180° = -45° (which means 45° anticlockwise). Her final direction is North-East. If she arrived at North-East after a 45° anticlockwise turn, her initial direction must have been East.
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