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Jatin Dubey • 3.78K Points
Extraordinary

61) A boat can be rowed 6 km/hr along the current and 4 km/hr against the current. Speed of the current and speed of the boat in still water, respectively will be

(A) 1 km/hr, 5 km/hr

(B) 5 km/hr, 1 km/hr

(D) none of these

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Correct Answer - Option (A)

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Jatin Dubey • 3.78K Points
Extraordinary

62) A boat moves down the stream at the rate of 1 km in 6 minutes and up the stream at the rate of 1 km in 10 minutes. The speed of the current is

(A) 2 km/hr

(B) 1 km/hr

(D) 2.5 km/hr

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Correct Answer - Option (A)

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Jatin Dubey • 3.78K Points
Extraordinary

63) A man can row 5 km per hour in still water. If the river is flowing at 1km per hour, it takes him 75 minutes to row to a place and back. How far is the place?

(A) 3 km

(B) 2.5 km

(D) none of these

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Correct Answer - Option (A)

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Jatin Dubey • 3.78K Points
Extraordinary

64) When the speed of a boat in still water is 4 km/h and the rate of stream is 2 km/h, find upstream speed of the boat.

(A) 6 km/h

(B) 5 km/h

(D) 7 km/h

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Correct Answer - Option (C)

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Jatin Dubey • 3.78K Points
Extraordinary

65) A swimmer's speed downstream is 11 km/h and speed of the stream is 1.5 km/h. Find the upstream speed of swimmer.

(A) 8 km/h

(B) 9.5 km/h

(D) 6.25 km/h

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Correct Answer - Option (A)

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Jatin Dubey • 3.78K Points
Extraordinary

66) A boatman rows 1 km in 5 min along the stream and 6 km in 1 h against the stream. The Speed of the stream is

(A) 3 km/h

(B) 6 km/h

(D) 12 km/h

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Correct Answer - Option (A)

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Jatin Dubey • 3.78K Points
Extraordinary

67) Keshav can row 60 km downstream and 36 km upstream, taking 10 h each time. What is the velocity of the current?

(A) 3 km/h

(B) 2.2 km/h

(D) 1.2 km/h

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Correct Answer - Option (D)

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Jatin Dubey • 3.78K Points
Extraordinary

68) What time will be taken by a boat to cover a distance of 128 km along the stream, if speed of a boat in still water is 24 km/h and speed of stream is 8 km/h?

(A) 8 hrs

(B) 4 hrs

(D) 6 hrs

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Correct Answer - Option (B)

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Deepak Sahoo • 10.63K Points
Tutor II

69) Who were 'Umanar' in the Sangam Age?

(A) The retailers in salt

(B) Military commanders

(D) Agriculturists

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Correct Answer - Option (A)

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Deepak Sahoo • 10.63K Points
Tutor II

70) Which one of the following is not a Chola revenue term?

(A) Kadamai

(B) Adimai

(D) Alkkasu

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Correct Answer - Option (B)

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