Upstream speed = 273/7 = 39 km/h Downstream speed = 441/9 = 49 km/h Speed of boat in still water = (39 + 49)/2 = 44 km/h Speed of stream = (49 – 39)/2 = 5 km/h Increased speed of boat in still water = 44 + 4 = 48 km/h Decreased speed of stream = 5 – 2 = 3 km/h Required time taken = 540/(48 – 3) + 459/(48 + 3) = 12 + 9 = 21 hours
Find the missing term in the following series:
43 44 ? 69 185
...Select the number that can replace the question mark (?) in the following series.
Find the missing number.
20, 30, 42, 56, 72, ?
Select the number which can be placed in the column of question mark sign.
UDGO : FWTL : : MXRC : ?
Select the number from the given option that can replace the question mark (?) in the following series:
32, 16, 24, 60, ?, 945
A series is given with two terms missing. Choose the correct alternatives from the given ones that will come in the place of blanks respectively and com...
Find the missing number by analysing the pattern followed by the numbers in each row.
Study the given pattern carefully and select the number that can replace the question mark (?) in it.
First row: 14, 22, 31
Second...
Select the number from among the given option that can replace the question mark (?) in the following series.
11, 18, 30, 52, 94, ?
