Question

How much does a clock lose per day, if its hands coincide ever
65 minutes ?
Options:Options:A - 1440/143 min
B - 184/13 min
C - 1425/18 min
D - 541/9 min

Answer 1

Step-by-step explanation:

19Q:

How much does a clock lose per day, if its hands coincide ever 65 minutes ?

A) 1440/143 min

B) 184/13 min

C) 1425/18 min

D) 541/9 min

Answer: C) 1425/18 min

Explanation:

55 min. spaces are covered in 60 min.

60 min. spaces are covered in ((60/55) x 60) min = 720/11 min.

Loss in 65 min. = (720/11 - 65 ) = 5/11

Loss in 24 hrs = (5/11 x 1/65 x 24 x 60)min = 1440/143 min.

Answer 2

Answer:

hi

your answer is here !

Step-by-step explanation:

In 24 hours the hands of hour and minute coincide 22 times. 24 hours equals 24*60=1440 minutes.

1440/22 = 65 and 5/11 minutes.=> every 65 and 5/11 min, they coincide.

Now the clock in question coincide every 64 minutes; therefore 24 hours in your clock means 64*22 minutes or 1408 minutes.

So your clock should lose 1440-1408=32 minutes.

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