A: The total speed of the two friends on the road will be 12 km + 10 km = 22 km. The total speed of the two friends on the river will be 4 km. The speed of the friend who moves on the cycle will be 22 km - 4 km = 14.4 km. The speed of the friend who sails on a boat will be 7.2 km - 4 km = 8.4 km. The speed of the friend who moves on a cycle will be 9.6 km. The answer is (C).
Answer the following multiple choice question with options (a), (b), (c), (d), (e) by reasoning step-by-step.
Q:There is a road beside a river. Two friends started from a place A, moved to a temple situated at another place B and then returned to A again. One of them moves on a cycle at a speed of 12 km/hr, while the other sails on a boat at a speed of 10 km/hr. If the river flows at the speed of 4 km/hr, which of the two friends will return to place A first? Answer Choices: A)5.4 km /hr B)7.2 km /hr C)8.4 km/hr D)9.6 km /hr E)None