Question
A boat can travel 38 km downstream in 57 min. The ratio
of the speed of the boat in still water to the speed of the stream is 3: 2. How much time will the boat take to cover 22 km upstream?Solution
Speed of downstream = D/T = 38 × (60/57) = 40 km/hr The ratio of the speed of the boat in still water to the speed of the stream = 3: 2 (3x, 2x) => 5x = 40 => x = 8 Speed of upstream = 3x – 2x = x = 8 km/hr Distance = 22 km Time = D/S = 22/8 = 2(3/4) hr = 2 hour 45 min
Select the combination of letters that when sequentially placed in the blanks of the given letter series will complete the series.
_ _ i _ h _ i ...
Select the option that is related to the fifth term in the same way as the second term is related to the first term and the fourth term is related to th...
If 87 # 95 = 101 and 48 # 84 = 64, then 68 # 87 = ?Â
Statements:
X < W ≤ F = Q ≥ P = T ≥O ≥ S = R
Conclusions:
I) Q > R
I) Q = R
Select the option that is related to the third letter-cluster in the same way as second letter-cluster is related to the first letter cluster.
PL...
Select the set in which the numbers are related in the same way as are the numbers of the given sets. (NOTE : Operations should be performed on the whol...
What does "ZK" stands for?
Select the option that is NOT like the given set.
(8, 40, 56)
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.
...Select the option that is related to the fifth term in the same way as the second term is related to the first term and fourth term is related to third ...
