Question
A boat can cover 176 km in downstream in 11 hours and
150 km in upstream in 15 hours. Find the speed of boat in still waterSolution
Downstream speed of the boat = 176/11 = 16 km/hr Upstream speed of the boat = 150/15 = 10 km/hr Speed of boat in still water = (16 + 10)/2 = 13 km/hr
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The marks obtained by 7 students in a class in mathematics are 43, 44, 65, 41, 53, 65 and 62. The mode of the data is:
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