Question
The speed of the boat in still water is 11 km/hr and the
speed of the stream is 7 km/hr. A boat goes 90 km downstream with its usual speed but at the time of returning the speed of the boat in still water is doubled. Find the total time taken by boat to cover the whole distance. TYPE 34Solution
According to the question, Required time = 90/(11 + 7) + 90/(22 – 7) => 90/18 + 90/15 => 5 + 6 = 11 hours
Which of the following indicates that ‘D is grandmother of T’?
P, F’s father, has a grandchild, Vartika is the mother of K who has a son N, but K is not the daughter. K has a brother. Vartika and P are married...
P, L, T, B, N and D are six members of a business family. N is the son of B, who is not the mother of N. L is the brother of B. D and B are a married co...
Statements : G ≥ K ≤ C < O, T = C ≥ K
Conclusions : I. T > O II. G ≤ O
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In a family of six person, D is mother of L. M is son of E and L is brother of M. K is sister in law of G, who is married to M. There are three married ...
Which of the following is definitely true?
Which among the following option(s) is/are definitely true?
_____ is the father of _____.
I. V, U
II. P, Q
III. U, T
There are seven persons, S, T, U, V, W, Y and Z in a family of three generations. S is the grandfather of U. U is married to Y. Y is daughter-in-law of ...
