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Let the speed of the stream be 'M' km/h Speed of the ferry in still water = (4M + M) = 5M km/h Downstream speed = (5M + M) = 6M km/h Upstream speed = (5M – M) = 4M km/h Acc. to the question, 37.5 = 6M × (75/60) M = 5 km/h Upstream speed = 4M = 4 × 5 = 20 km/h Distance travelled = 4.7 × 20 = 94 km
A is more intelligent than B, B isn’t as intelligent as C. C is more intelligent than D but not as good as A. Who’s the most intelligent of them all...
What is the weight of Q?
If 2 boys and 2 girls are to be arranged in a row so that the girls are not next to each other, how many possible arrangements are there?
There are five students S, T, U, V and W participating in a match. T gets lesser score than only U and S. V scores lesser than T and more than W. S does...
Five boys took part in a competition. Vasu finished before Ajay but behind Neeraj. Dheeraj finished before Suman but behind Ajay. Who won the race?
If the difference between the weights of U and R is 23kg, then how many items are lighter than the item S?
In a row of girls, Shweta is 11th from the front and Seema is 3 places ahead of Geeta who is 22nd from the front. How many girls ...
How many persons are lighter than person I?
Who is the tallest?