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There are clocks A and B. The hands of clock A move normally as clockwise, while in clock B (due to reverse connection), they move anticlockwise. Initially, the two hands of both clocks are at mark showing 12. If after some time, the angle between the directions of two hour hands is 90º (for the first time), then at the same instant, the angle between the directions of minute hand will be
- a)0°
- b)15°
- c)30°
- d)45°
Correct answer is option 'A'. Can you explain this answer?
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Most Upvoted Answer
There are clocks A and B. The hands of clock A move normally as clockw...
At starting all hands are at 12. That is our 0 degree.
Now,the two hour hands make 90 drg with each other.
That means each hand has moved 45 deg in opposite direction. that is 45 degrees from 12. So what is 45 degrees of a clock?
it is 1.5 hours => 45/360 × 12 hours.
so that means 1.5 hours has passed. That means the minutes hands must be on 6. Both the minute hands. so what is the angle between them ?
0 degrees.
Now,the two hour hands make 90 drg with each other.
That means each hand has moved 45 deg in opposite direction. that is 45 degrees from 12. So what is 45 degrees of a clock?
it is 1.5 hours => 45/360 × 12 hours.
so that means 1.5 hours has passed. That means the minutes hands must be on 6. Both the minute hands. so what is the angle between them ?
0 degrees.
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Community Answer
There are clocks A and B. The hands of clock A move normally as clockw...
If the two hour hands form a 90° angle, it means they are perpendicular to each other.
Let's consider the clockwise movement of the hour hand in clock A. As time passes, the hour hand moves in the clockwise direction, coming closer to the 1 o'clock mark, then the 2 o'clock mark, and so on.
Similarly, in clock B, due to the reverse connection, the hour hand moves in the anticlockwise direction. As time passes, the hour hand moves away from the 1 o'clock mark, then the 2 o'clock mark, and so on.
Since both clocks start with their hour hands at the 12 o'clock mark, the clockwise movement in clock A and the anticlockwise movement in clock B will eventually bring the hour hands perpendicular to each other.
Therefore, after some time, the angle between the hour hands of clock A and clock B will be 90°.
Let's consider the clockwise movement of the hour hand in clock A. As time passes, the hour hand moves in the clockwise direction, coming closer to the 1 o'clock mark, then the 2 o'clock mark, and so on.
Similarly, in clock B, due to the reverse connection, the hour hand moves in the anticlockwise direction. As time passes, the hour hand moves away from the 1 o'clock mark, then the 2 o'clock mark, and so on.
Since both clocks start with their hour hands at the 12 o'clock mark, the clockwise movement in clock A and the anticlockwise movement in clock B will eventually bring the hour hands perpendicular to each other.
Therefore, after some time, the angle between the hour hands of clock A and clock B will be 90°.
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There are clocks A and B. The hands of clock A move normally as clockwise, while in clock B (due to reverse connection), they move anticlockwise. Initially, the two hands of both clocks are at mark showing 12. If after some time, the angle between the directions of two hour hands is 90º (for the first time), then at the same instant, the angle between the directions of minute hand will bea)0°b)15°c)30°d)45°Correct answer is option 'A'. Can you explain this answer?
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There are clocks A and B. The hands of clock A move normally as clockwise, while in clock B (due to reverse connection), they move anticlockwise. Initially, the two hands of both clocks are at mark showing 12. If after some time, the angle between the directions of two hour hands is 90º (for the first time), then at the same instant, the angle between the directions of minute hand will bea)0°b)15°c)30°d)45°Correct answer is option 'A'. Can you explain this answer? for CAT 2024 is part of CAT preparation. The Question and answers have been prepared according to the CAT exam syllabus. Information about There are clocks A and B. The hands of clock A move normally as clockwise, while in clock B (due to reverse connection), they move anticlockwise. Initially, the two hands of both clocks are at mark showing 12. If after some time, the angle between the directions of two hour hands is 90º (for the first time), then at the same instant, the angle between the directions of minute hand will bea)0°b)15°c)30°d)45°Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for CAT 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for There are clocks A and B. The hands of clock A move normally as clockwise, while in clock B (due to reverse connection), they move anticlockwise. Initially, the two hands of both clocks are at mark showing 12. If after some time, the angle between the directions of two hour hands is 90º (for the first time), then at the same instant, the angle between the directions of minute hand will bea)0°b)15°c)30°d)45°Correct answer is option 'A'. Can you explain this answer?.
There are clocks A and B. The hands of clock A move normally as clockwise, while in clock B (due to reverse connection), they move anticlockwise. Initially, the two hands of both clocks are at mark showing 12. If after some time, the angle between the directions of two hour hands is 90º (for the first time), then at the same instant, the angle between the directions of minute hand will bea)0°b)15°c)30°d)45°Correct answer is option 'A'. Can you explain this answer? for CAT 2024 is part of CAT preparation. The Question and answers have been prepared according to the CAT exam syllabus. Information about There are clocks A and B. The hands of clock A move normally as clockwise, while in clock B (due to reverse connection), they move anticlockwise. Initially, the two hands of both clocks are at mark showing 12. If after some time, the angle between the directions of two hour hands is 90º (for the first time), then at the same instant, the angle between the directions of minute hand will bea)0°b)15°c)30°d)45°Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for CAT 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for There are clocks A and B. The hands of clock A move normally as clockwise, while in clock B (due to reverse connection), they move anticlockwise. Initially, the two hands of both clocks are at mark showing 12. If after some time, the angle between the directions of two hour hands is 90º (for the first time), then at the same instant, the angle between the directions of minute hand will bea)0°b)15°c)30°d)45°Correct answer is option 'A'. Can you explain this answer?.
Solutions for There are clocks A and B. The hands of clock A move normally as clockwise, while in clock B (due to reverse connection), they move anticlockwise. Initially, the two hands of both clocks are at mark showing 12. If after some time, the angle between the directions of two hour hands is 90º (for the first time), then at the same instant, the angle between the directions of minute hand will bea)0°b)15°c)30°d)45°Correct answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for CAT.
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There are clocks A and B. The hands of clock A move normally as clockwise, while in clock B (due to reverse connection), they move anticlockwise. Initially, the two hands of both clocks are at mark showing 12. If after some time, the angle between the directions of two hour hands is 90º (for the first time), then at the same instant, the angle between the directions of minute hand will bea)0°b)15°c)30°d)45°Correct answer is option 'A'. Can you explain this answer?, a detailed solution for There are clocks A and B. The hands of clock A move normally as clockwise, while in clock B (due to reverse connection), they move anticlockwise. Initially, the two hands of both clocks are at mark showing 12. If after some time, the angle between the directions of two hour hands is 90º (for the first time), then at the same instant, the angle between the directions of minute hand will bea)0°b)15°c)30°d)45°Correct answer is option 'A'. Can you explain this answer? has been provided alongside types of There are clocks A and B. The hands of clock A move normally as clockwise, while in clock B (due to reverse connection), they move anticlockwise. Initially, the two hands of both clocks are at mark showing 12. If after some time, the angle between the directions of two hour hands is 90º (for the first time), then at the same instant, the angle between the directions of minute hand will bea)0°b)15°c)30°d)45°Correct answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice There are clocks A and B. The hands of clock A move normally as clockwise, while in clock B (due to reverse connection), they move anticlockwise. Initially, the two hands of both clocks are at mark showing 12. If after some time, the angle between the directions of two hour hands is 90º (for the first time), then at the same instant, the angle between the directions of minute hand will bea)0°b)15°c)30°d)45°Correct answer is option 'A'. Can you explain this answer? tests, examples and also practice CAT tests.
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