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ATQ, Let the speed of ‘K’ be ‘b’ km/hr Therefore, speed of ‘L’ = (b – 20) km/hr According to the question, 
Since speed cannot be negative therefore, b = 100 Therefore, speed of ‘L’ = b - 20 = 80 km/hr
In a train, 45% of the passengers are females. Out of total number of passengers, 65% have unreserved tickets out of which 27% are females. How much per...
A man spends 40% of his monthly salary on rent, 20% on food, and 10% on transportation. If he saves ₹18,000, which is half of the remaining amount, fi...
In a society, 20% of residents enjoy swimming and 35% enjoy running. If 5% enjoy both activities and the rest, which amounts to 18 residents, enjoy neit...
In a job fair, 50% of the people are graduates, one fifth of them are post graduates and rest are double graduates. If three-fourth of the graduates, 60...
If salary of Sunil is 30% more than that of Manish, then salary of Manish is how much percent less than that of Sunil? [correct upto two decimal places]
In a city, the number of persons travelling by bike is 62.5% the number of persons travelling by metro. The number of persons travelling on foot is 60% ...
In 2020, Sumit's expenditure and savings are in the ratio of 4:3 . The following year, his expenditure increases by 25% , and his savings grow by ...
Suyash allocates 30% of his earnings for expenses and distributes the rest between his wife and two children—a daughter and a son—in a 2:5 ratio, re...
Which of the following represent a 20% increase and a 10% decrease, respectively?
