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Mr. Ali decided to walk down the escalator of a tube station. He found that if he walks down 26 steps, he requires 30 seconds to reach the bottom. However, if he steps down 34 stairs he would only require 18 seconds to get to the bottom. If the time is measured from the moment the top step begins to descend to the time he steps off the last step at the bottom, find out the height of the stair way in steps?
The maximum number of steps in a flight should generally be restricted to
L is older than M and taller than N. O is younger than P, older than N and shorter than Q. R is older than S, younger than N, shorter than S and taller than Q. S is older than L, M, O, P, Q, R and S is necessarily false?
Khan observes that if flight 409 is cancelled, then the manager could not possible arrive in the time for the meeting . But the flight was not cancelled. Therefore, Khan concludes, the manager will certainly be on time . Halima replies that even if Khan's premises are true, his argument is fallacious. And therefore, she adds, the manager will not arrive on time after all. Which of the following is the strongest thing that we can properly say about this discussion ?
A number is greater than 3 but less than 8. Also, it is greater than 6 but less than 10. The number is -
If w is 10% less than x, and y is 30% less than Z, then why is what percent less than xz?
If w is 10 percent less than x, and y is 30 percent less than z, then wy is what percent less than xz?
In a group of students, 80% of the students weigh less than 60 kg and a total of 32 student weigh less than 50 kg. If 60% of the students weigh at least 50 kg, how many of the students weigh at least 50 kg but less than 60 kg?
If w is 10% less than x and y is 30% less than z , then wy is what percent less than xz ?
if w is 10% less than x and y is 30% less than z , then wy is what persent less than xz ?