Question :
In a 400-metre race, A runs at a speed of 16 m/sec. If A gives B a start of 15 metres and still beats him by 10 sec, then what is the speed of B ?
Options :
- 11 m/sec
- 10 m/sec
- 13 m/sec
- 9 m/sec
correct answer : a)

Question :
In a 400-metre race, A runs at a speed of 16 m/sec. If A gives B a start of 15 metres and still beats him by 10 sec, then what is the speed of B ?
Options :
correct answer : a)
