A car is travelling with 5/7 of its usual speed covers 42 km in 1hour 40 minutes 48 seconds. what is the usual speed of the car?
a) 125/7 km/hr
b) 35km/hr
c) 25km/hr
d) 30km/hr
please answer me with full explanation
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A car is travelling with 5/7 of its usual speed covers 42 km in 1hour 40 minutes 48 seconds. what is the usual speed of the car?
a) 125/7 km/hr
b) 35km/hr
c) 25km/hr
d) 30km/hr
please answer me with full explanation
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Answer:
the answer is 35km/hr
method is attached
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