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A clock is started at noom. By 10 mimutes past 5, the hour hand has turned through:
  • a)
    1450
  • b)
    1500
  • c)
    1550
  • d)
    1600
Correct answer is option 'C'. Can you explain this answer?


Verified Answer
A clock is started at noom. By 10 mimutes past 5, the hour hand has tu...
Angle traced by hour hand in 12 hrs = 360º.
Angle traced by hour hand in 5 hrs 10 min. i.e., 31/6 hrs 
= (360/12*31/6)°
= 155º
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Most Upvoted Answer
A clock is started at noom. By 10 mimutes past 5, the hour hand has tu...
To solve this question, we need to determine how much the hour hand of the clock moves in 10 minutes past 5 o'clock.

1. Calculate the total degrees covered by the hour hand in 12 hours:
- In 12 hours, the hour hand completes a full circle, which is 360 degrees.
- So, in 1 hour, the hour hand covers 360 degrees / 12 = 30 degrees.

2. Calculate the degrees covered by the hour hand in 1 minute:
- In 1 hour, the hour hand covers 30 degrees.
- So, in 1 minute, the hour hand covers 30 degrees / 60 = 0.5 degrees.

3. Calculate the degrees covered by the hour hand in 5 o'clock:
- At 5 o'clock, the hour hand is pointing directly at the 5 on the clock.
- Since the hour hand moves from one number to the next as the minutes progress, it covers an additional 0.5 degrees for every minute.
- From 5 o'clock to 5:10, there are 10 minutes, so the hour hand covers an additional 0.5 degrees * 10 = 5 degrees.

4. Calculate the total degrees covered by the hour hand in 10 minutes past 5:
- At 5 o'clock, the hour hand is at 5 degrees.
- With an additional 5 degrees covered in 10 minutes, the hour hand has turned through a total of 5 degrees + 5 degrees = 10 degrees.

5. Convert the degrees covered by the hour hand into minutes:
- Since the hour hand moves at a rate of 0.5 degrees per minute, we can convert the 10 degrees covered into 10 degrees / 0.5 degrees per minute = 20 minutes.

Therefore, in 10 minutes past 5, the hour hand has turned through 20 minutes.
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Community Answer
A clock is started at noom. By 10 mimutes past 5, the hour hand has tu...
In 6 hour , hour clock covers 180 degree. So in 1 hour,it will cover 30degree, and hence 5 hour=150 degree.. Now as we know 1hour = 60 minutes.. so 1 hour= 30 degree = 60 minutes..Now,60 minutes=30 degreeSo,1 minutes=30/60 degreeSo,10 minutes=30/60 *10 =5 degreeSo 10 minutes past 5, hour hand will cover (150+5)=155 degree
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A clock is started at noom. By 10 mimutes past 5, the hour hand has turned through:a)1450b)1500c)1550d)1600Correct answer is option 'C'. Can you explain this answer?
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