A car travelling with 5/7 km of its actual speed covers 42km in 1hr 40 min 48 sec find the actual speed of the car?
Select the correct option
A) 78kmph  B) 85kmph  C) 35kmph  D) 24kmph  E) 74kmph
time taken =1hr 40 min 48 sec=126/75hrs   let the actual speed be x kmph   then 5/7 x*126/75=42   x=(42*7*75)/5*126=35kmph   Answer (35kmph)
<result>C</result>
A car travelling with 5/7 km of its actual speed covers 42km in 1hr 40 min 48 sec find the actual speed of the car?