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Let, the speed of boat be b km/hour and speed of current be s km/hour Average speed = 2xy/(x+y) (here, x is speed of downstream and y is speed of upstream) = (2 (b+s)(b-s))/((b+s+b-s)) = (b2-s2)/b = (225-25)/15 = `13 1/3` km/hour
RT : QU : : VX : ?
complete the series.
T _ G _ _ T I _ _ R _ _ G E R T I G _ _ T _ _ E R
Select the related word/ letters/ number from the given alternatives.
PJQR : QKIJ :: RJDY : ?
If 12 # 34 = 14 and 67 # 88 = 106, then 45 # 67 = ?
Select the related letters/word/number from the given alternatives:
36 : 216 :: 43 : (?)
Select the option that is related to the third letter-cluster in the same way as the second letter-cluster is related to the first letter-cluster.
<...If 6 x 4 = 12 and 7 x 3 = 28 then 11 x 3 = ?
Select the set of letters that when sequentially placed in the blanks of the given letter series will complete the series.
_ x y _ w _ y z w x _ _ w _ _ z
If all the letters in the word ‘CANTONMENT’ are arranged in alphabetical order from left to right such that the vowels are arranged first followed b...
Select the option that is related to the third number in the same way as the second number is related to the first number.
55 : 86 :: 39 : ?
