Question

P and q take part in 100 m race. P runs at 6kmph. P gives q a start of 8 m and still beats him by 8 seconds. The speed of q is

Answer 1

Answer:

23 / 17  m/s =   1.35 m/s

414/85 km/hr = 4.87 km/hr

Step-by-step explanation:

P runs at 6kmph

= 6 * 1000 / 3600

= 6 * 5 /18

= 5/3 m/s

Distance = 100 m

Time taken = 100 /(5/3)   = 60 sec

P gives q a start of 8 m

=> q runs for 100 - 8 = 92 m  in 60+8 = 68 sec

Q speed =  92/68   = 23 / 17  m/s

= 23 /17   * 18/5

= 414/85 km/hr