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prakash deep

· started a discussion

· 1 Months ago

detail (Question: 259945.0 )

time by A to cover 100m race=100/speed of A=60sec.
time by B to cover 96m= 60+12=72
speed of B=96/72=4/3

Question:

In a 100 m race, A runs at a speed of  53    m/s. If A gives a start of 4 m to B and still beats him by 12 seconds. What is the speed of B?

Options:
A)

54    m/s

B)

75    m/s

C)

43    m/s

D)

65    m/s

Solution:

Ans: (c)

  

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