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Let the speed of the boat be u and that of the stream be v. Then, speed of boat downstream = u + v And speed of boat upstream = u – v From I u + v = 18/3 = 6 km/hr ……….. (i) From II, u – v = 18/6 = 3 km/hr ……… (ii) From statement III, v = u/3 ……….(iii) From I and II, we get u = 9/2 = 4.5 km/hr. From I and III, we get u + u/3 = 6 Or 4u = 18 u = 4.5 km/hr. Hence statement I and either II or III is sufficient to answer the question.
‘A × B’ means ‘A is the brother of B’.
‘A − B’ means ‘A is the mother of B’.
‘A ÷ B’ means ‘A is the father of B...
If expression C % E $ A @ B & O # F @ G is true, then which of the following expressions is definitely correct?
If 'A % B' means 'A is wife of B', 'A # B' means 'A is brother of B', 'A @ B' means 'B is son of A', 'A & B' means 'A is daughter of B', 'A $ B' means '...
'A # B' means 'A is the mother of B'.
'A @ B' means 'A is the daughter of B'.
'A & B' means 'B is the husband of A'.
'A % B' means ...
Statements : X = E > U, T ≥ V > W, E > W = U
Conclusions : I. T >U II. X ≥ V
How is J related to L if ‘D @ G & J ? M # L’ is true?
If J # K & L % M @ I % H then how is I related to K?
If ‘A % B’ means ‘A is the daughter of B’, ‘A & B’ means ‘A is the wife of B’, and ‘A # B’ means ‘A is the son of B’, then how i...
A % B means 'A is the daughter of B' A = B means 'A is the sister of B' A $ B means 'A is the father of B' If G % H = J % L $ M, then how is J related t...