Let speed of boat in still water and speed of boat in upstream be ‘5x’ km/h and ‘3x’ km/h, respectively. Speed of stream = 5x – 3x = 2x km/h Speed of boat in downstream = 5x + 2x = 7x km/h So, 7x = 490/5 => x = 14 Speed of boat in still water = 5 × 14 = 70 km/h Desired time = 56/70 x 60 = 48 minutes
How many daughters Ajay and Rekha have?
...Which of the following person is a female member of the family?
There are how many married couples in this family?
In a family, U is the father of L. U has only two children. L is the brother of I. I is the daughter of S. B is the grand-daughter of S. C is the father...
Pointing to a boy, Pankaj said: He is grandson of the woman who is mother – in – law of the husband of my mother. How is the boy related to Pankaj?<...
J is the sister of T. T is married to D. D is the father of R. M is the son of H. T is the mother – in – law of H. D has only one son and no daughte...
How is A related to E?
If Naresh says, “Suraj’s mother is the only daughter of my mother”, how is Naresh related to Suraj?
How is U related to mother of Y?
Who is the grandmother of A?
