Question
A boat travels 240 km downstream and 160 km upstream in
16 hours. If the ratio of the speed of the boat in still water to the speed of the stream is 5:1, then find the speed of the boat in downstream.Solution
Let speed of stream = 'x' km/h Then speed of boat in still water = 5x km/h ATP, (240/6x) + (160/4x) = 16 (40/x) + (40/x) = 16 {(40 + 40) /x} = 16 (80/x) = 16 x = 5 therefore, downstream speed of the boat = 6x = 6 X 5 = 30 km/h
If a mirror is placed on the line PQ, then which of the answer figures is the right image of the given figure?
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Select the correct mirror image of the given figure when the mirror is placed to the right side of the given figure.
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Select the correct mirror image of the given combination when the mirror is placed at 'MN' as shown below.
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Select the correct mirror image of the given figure.
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Select the correct mirror image of the given combination when the mirror is placed at line MN as shown.![](https://www.ixambee.com/anubhav_test/20...</a></li> <div class="clearfix mt-3"></div>
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