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A priest from a temple rang the bell at an interval of 60-sec but a man hears it in 55-sec interval if the distance between the temple and the man is 900 m find the time in which he will arrive in the temple given that the speed of sound of the bell is 330 m/sec.

A priest from a temple rang the bell at an interval of 60-sec but a man hears it in 55-sec interval if the distance between the temple and the man is 900 m find the time in which he will arrive in the temple given that the speed of sound of the bell is 330 m/sec. Correct Answer 30 seconds

Given:

Speed of sound = 330 m/sec

Man hears the bell in 55-sec interval

Priest rang the bell in 60-sec interval

Distance from man to temple = 900 m

Concept:

As the distance is the same so we can say that time is inversely proportional to speed.

Calculation:     

                              Sound            Man         

Time (in sec)            5                  55

                                   1       :          11

Speed                       11      :           1

Speed of sound = 11R = 330 m/sec

So the speed of man = 1R = 30 m/sec

∴ Man arrives to the temple in = 900/30 = 30 seconds      

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