Question
Find the total distance covered by boat in each upstream
and downstream in 5 hours if the speed of boat in still water and speed of current is 25 km/h and 6 km/h respectively?Solution
Speed in upstream = 25 – 6 = 19 km/hr Speed in downstream = 25 + 6 = 31 km/hr Required total distance= (19 + 31) × 5 = 250 km
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Interchanges: Sig...
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11 * 4 * 55 ...
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75 & 15 # 50 % 2 @...
If '+' means '-', ' X ' means '+', '-' means '÷' and '÷' means ' X ', then what is the value of the following expression?
480 - 12 + 250 X 3...
In a certain code of language, ‘+’ represents ‘x’, ‘-‘ represents ‘+’, ‘x’ represents ‘÷’ and ‘÷’ represents ‘-‘ what ...
Select the number from among the given options that can replace the question mark (?) in the following series.
24, 35, 51, 73, 102, ?
...
