Question
A boat goes 65 km in upstream in 5 hours and takes 4
hours to complete a distance of 20 km in downstream. Find the speed of boat in still water.Solution
Speed of boat in still water = (D + U)/2 Upstream speed (U) = 65/5 = 13 km/hr Downstream speed (D) = 20/4 = 5 km/hr Speed of boat in still water = (13 + 5)/2 = 18/2 = 9 km/hr
Answer the questions based on the information given below.
Seven persons Suresh, Manav, Vinita, Krisha, Harsh, Gargi and Varun are in the famil...
There are five members T, U, V, W, and Y in the family. V is married to Y. T’s mother is daughter of U. W and T are male members. Y is brother of W. H...
Eight persons P, Q, R, S, T, U, V and W are from two generations and four married couple. V and T are married couples. P is father in law of U, who is s...
How many male members are there in the family?
How is R related to N?
Which of the following is definitely false?
Which among the following statement is definitely incorrect?
How is W related to T?
Answer the questions based on the information given below:
There are seven members D, E, F, G, H, I, and J in a family of three generation. E i...
How is P related to Q?
Relevant for Exams:
