Question
A man can row at 36 km/hr in still water. In a stream
which is flowing at 12 km/hr, it takes him 3 hrs to a place and back. How far is the place?Solution
Let distance= x km, Rate upstream = 36 - 12 = 24 km/hr Rate downstream = 36 + 12 = 48 km/hr. ∴ Time taken upstream= x/24 and Time taken downstream= x/48 ∴ x/24 + x/48 = 3 ⇒ 3x/( 48) = 3 ⇒ x = 48 km.
Which of the following indicates that ‘D is grandmother of T’?
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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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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 ...
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