Question
The speed of current is 10 km/h. What will be the
respective downstream speed and upstream speed of a boy rowing a boat, if one sixth of the distance covered going downstream in a certain time is equal to the distance covered going upstream in the same time?Solution
Let the speed of boy in still water be X km/h. And the speed of current = 10 km/h Downstream speed = (X + 10) km/h Upstream speed = (X – 10) km/h Let time be ‘t’ hours. ⇒ [(X + 10) t]/6 = (X – 10) t ⇒ X + 10 = 6X – 60 ⇒ X = 14 km/h Downstream speed = 14 + 10 = 24 km/h Upstream speed = 14 – 10 = 4 km/h
If ZIP = 26916 and ZEAL = 265112, then ZIPPER =
Identify the number, which when added to itself 15 times gives 608.
Select the option in which the numbers share the same relationship in set as that shared by the numbers in the given set. (NOTE: Operations should be pe...
Select the option in which the numbers are related in the same way as are the numbers of the following set.
(14, 56, 28)
- Select the option that is related to the third term in the same way as the second term is related to first term and the sixth term is related to the fifth ...
If ‘x’ stands for ‘addition’, ‘ ÷' stands for ‘subtraction’, ‘+’ stands for ‘multiplication’, and ‘–’ stands for ‘divisi...
Select the option that is related to the third term in the same way as the second term is related to the first term.
CNOP: EKSK :: UWQZ: ?
Select the option in which the numbers are not related in the same way as are the number of the following set.
(5, 11, 165)
'Force' is related to 'Newton' in the same way as 'Pressure' is related to _______ .
Select the option that is related to the third number in the same way as the second number is related to the first number.
53: 1225:: 82: ?
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