A car travelling with 5/7 of its actual speed covers 42km in 1hr 40 min 48 sec find the actual speedof the car? Choose the correct choice:
A) 52km/hr
B) 25km/min
C) 35km/hr
D) 125km/hr
E) 63km/hr
Time taken=1hr 40 min 48sec   =1hr 404/5 min=1 51/75hrs =126/75hrs.   let the actual speed be xkm/hr.   then x 5/7*126/75=42   x=(42*7*75/5*126)=35km/hr   Answer(35km/hr)
<result>C</result>
A car travelling with 5/7 of its actual speed covers 42km in 1hr 40 min 48 sec find the actual speedof the car?