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Given ratio: Downstream speed : Stream speed = 7:3 Stream speed = 9 km/hr Find downstream speed: Let Downstream speed = 7x and Stream speed = 3x Since 3x = 9 → x = 3 So, Downstream speed = 7×3=21 km/hr Find boat’s actual speed: Boat speed in still water = Downstream speed - Stream speed = 21 - 9 = 12 km/hr Find upstream speed: Upstream speed = Boat speed - Stream speed = 12 - 9 = 3 km/hr Find distance traveled upstream in 6 hours: Distance = Speed × Time = 3 × 6 = 18 km
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The capital of Manipur is:
Which one of the following statements for a tropographical map is not correct?
The average of first 8 multiples of 8 is.
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In the given figure 1 II M II n, the value of x is
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Consider the following statements :
1. The best means of measuring time is by the movement of the earth, the moon and the planets.
