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Let the speeds of boats ‘A’ and ‘B’ in still water be 8x km/hr and 9x km/hr Therefore, speed of the current = 0.25 × 8x = 2x km/hr According to the question, 8x + 2x = 750/7.5 Or, 10x = 100 Or, x = 10 Therefore, upstream speed of boat ‘B’ = 9x – 2x = 7x = 70 km/hr Downstream speed of boat ‘B’ = 9x + 2x = 11x = 110 km/hr Required time taken = (210/70) + (330/110) = 3 + 3 = 6 hours
Select the most appropriate synonym of the given word.
Caustic
Select the most appropriate synonym of the given word
LIVELY
Choose the word that means the same as the given word.
Obligation
To take back or withdraw something that has been given or granted
The room was dim and hard to see in.
Select the INCORRECTLY spelt word.
Select the correct Antonym of the given word.
rebuke
Select the most appropriate word for the given group of words.
A slowly moving mass or river of ice
Choose the correct synonym for the given word.
Fright
Discursive