Question
A steamer covers 80 km in 5 hr. in still water. If the
speed of the steamer in still water is 50% more than that of the stream, then time is required for the steamer to cover this distance upstream.Solution
Speed of the steamer in still water = (80/5) =16 km/h Speed of the stream = (16/1.5) = (32/3) km/h Upstream speed of the boat = 16 – (32/3) = {(48 – 32)/3} = (16/3) km Required time taken = 80 ÷ (16/3) = 80 ×3/16 = 15 hours
In a certain code RAINBOW is written as VNAMHZQ. How is SEMINAR written in that code?
Select the correct combination of mathematical signs that can sequentially replace the '$' signs and balance the equation.
180 $ 9 $ 6 ...
Out of the four given equations, the first three are solved based on a certain system. Find the correct answer for the unsolved fourth equation on the ...
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In a code language, ' SLAIN ' is written as ‘ PKCNU ’ and ' DENT ' is written as ' VPGF '. How will ' CUBOID ' be written in that language?
...Select the figure from the options that can replace the question mark (?) and complete the pattern.
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54 B 54 A 27 B 8 D...
Select the option that is related to the third term in the same way as the second term is related to the first term.
SZ : RA :: IL :
What should come in place of the question mark (?) in the given series based on the English alphabetical order?
TUO, VWR, XYU, ZAX, ?
