How many times are the hour hand and the minute hand of a clock of a right angle

Question

How many times are the hour hand and the minute hand of a clock of a right angles during their motion from 1 : 00 pm to 10 : 00 pm ?

Options:

A . 9

B . 10

C . 18

D . 20

Answer: Option C

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More Questions on This Topic :

Question 1. Wall clock gains 2 minutes in 12 hours, while a table clock loses 2 minutes every 36 hours. Both are set right at 12 noo....both show the same time next would be = ?

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Question 3. A wall-clock takes 9 seconds in tinging at 9 o'clock. The time, it will take in tinging at 11 o'clock, is = ?....

Question 4. A mechanical grandfather clock is at present showing 7 hours 40 minutes 6 seconds. Assuming that it loses 4 seconds in e....what time will it show after exactly $$6\frac{1}{2}$$ hours ?

Question 5. A clock strikes once at 1 o'clock, twice at 2 o'clock, thrice at 3 o'clock and so on. What is the total number of striki....the total number of strikings in a day = ?

Question 6. How many times are the hands of a clock at right angle in a day?....

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Question 8. The angle between the minute hand and the hour hand of a clock when the time is 8.30, is:....

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Question 10. At what time between 4 and 5 o'clock will the hands of a watch point in opposite directions?....

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