Speed downstream = Distance / Time = 36/2 = 18 km/h. Speed upstream = Distance / Time = 36/3 = 12 km/h. Speed of current = (Speed downstream - Speed upstream) / 2 = (18 - 12) / 2 = 6/2 = 3 km/h. Correct Option: b
How many persons are shorter than T?
In a class among five students, F has more marks than G and H, but H does not have least marks. I has more marks than J and J has more marks than F, who...
Six friends L, M, N, O, P, Q have different heights. M is taller than only Q. L and N are taller than Q but shorter than O, who is not the tallest. Whos...
Which box is the heaviest?
In a class, all the students are standing in a row. If a particular student is 18th from both the ends, how many students are there in the cl...
How many students scored more marks than Riya?
How many students scored more marks than V?
How many male people live above the floor on which A lives?
What can be the possible age of V?
Who among the following live immediately above R?
