How many Times will It Flash in 3/4 of and Hours?

If a light flashes every 6 seconds, how many times will it flash in 3/4 of and hours?

  1. 225
  2. 250
  3. 450
  4. 480
Anurag Mishra Professor Asked on 12th October 2015 in Maths.
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1 Answer(s)

Answer: (3) 450

Explanation:-
If a light flashes every 6 sec.
Then, the number of light flashes in a min = 60/6
= 10 times

3/4 hour = 60 x 3/4
= 15 x 3
= 45 min
Then, the number of light flashes in 45 min = 10 x 45
= 450 times

Hence, the answer is (3) 450.

Anurag Mishra Professor Answered on 14th October 2015.
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