Question
The speed of the stream is 16 km/h. Boat ‘A’ covers
128 km distance against the stream in 4 hours and boat ‘B’ covers 70 km distance against the stream in 5 hours. The speed of boat ‘B’ in still water is how much percent of the speed of boat ‘A’ in still water?Solution
Speed of boat ‘A’ upstream = 128/4 = 32 km/h Speed of boat ‘B’ upstream = 70/5 = 14 km/h Speed of the boat ‘A’ in still water = 32 + 16 = 48 km/h Speed of the boat ‘B’ in still water = 14 + 16 = 30 km/h Required percentage = (30/48) × 100 = 62.5%
A series is 2100, 3431, 2431, 3160, 2648, 2991
If another series 1728, __, __, __, __, p, follows the same pattern as the given number series, th...
0Â Â Â Â Â Â 2 Â Â Â Â Â Â Â 6Â Â Â Â Â Â 12 Â Â Â Â Â Â 20Â Â Â Â Â Â Â ?
...48Â Â Â 83Â Â Â 118Â Â Â 153Â Â Â 188Â Â Â ?
13 24 75 134 447 892
...49Â Â Â 84Â Â Â 119Â Â Â 154Â Â Â 189Â Â Â ?
24, 12, 18, ?, 157.5, 708.75
2Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 4Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 5Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 19Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 70...
5Â Â Â Â Â Â Â Â Â 18Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 44Â Â Â Â Â Â Â Â Â Â Â 83Â Â Â Â Â Â Â Â Â 135Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 200Â Â Â Â ...
16Â Â Â 48Â Â Â Â 120Â Â Â Â 240Â Â Â 360Â Â Â ?
?     190      210      238      274     318
...
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