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Start learning 50% faster. Sign in nowLet the speed of the stream be ‘x’ km/hr Therefore, speed of the boat in still water = 7.5x km/hr Upstream speed of the boat = 7.5x – x = 6.5x km/hr Downstream speed of the boat = x + 7.5x = 8.5x km/hr According to the question, 8.5x – 6.5x = 40 => 2x = 40 => x = 20 Therefore, upstream speed of the boat = 6.5x = 130 km/hr Required time taken = 260/130 = 2 hours
In each question below, a sentence is given with a part of it printed in bold type. Find out which phrase should replace the phrase given in bold to co...
Directions: In the questions, a part of the sentence is highlighted. Below are given alternatives that may improve the sentence. Choose the correct alt...
Improve the bold part of the sentence. Choose ‘No improvement’ as an answer if the sentence is grammatically correct.
A man may die, na...
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Almost children under five years of age are exempted from pre- and post-arrival testing, if found symptomatic on arrival or during home quarantine, ...
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In the following question, sentences are given with a part in bold. The given phrase in bold may or may not contain an error. The options following ca...
Select the most appropriate option to substitute the bold segment in the given sentence. If there is no need to substitute,select no improvement/no sub...
