Question

3.
A boat goes 8 kms an hour in still water,
but takes twice as much time in going the
same distance against the current. The
speed of the current (in km/hr) is -
एक नाव शांत में एक में 8 के दूरी के भो त के
हैं, परन्तु आरा के विपरीत दिशा में इसी दूरी को तय करने में
दोगुना समय लेती है। धाया की स्वास्न (किमी/घंटा) हैं -
(A) 2 km/hr / 2 किमी/घंटा
(B) 4 km/hr / 4 किमी/घंटा
(C) 3 km/u/3 किमी/घंटा
(D) 5 km/tr / 5 किमी/घंटा ।​

Answer 1

Answer:

(B.) 4km/hr

Step-by-step explanation:

time taken by boat to cover 8km in still water = 1 hour time taken by boat to cover same distance(8km) against current=twice the as much time(2hours) the speed of boat in still water = 8/1=8km/hr