X, Y and Z take 20, 30 and 60 days respectively to complete a job independently. They set out to complete a job together . However Y leaves after 4 days and Z leaves after another 6 days . How many more days will it take for X alone to complete the job now?
Correct Answer : A
X is 25% more efficient than Y and his hourly wages are 25% more. If X is paid Rs.75, how much will Y receive for the same work?
Two outlets of the same capacity when opened together can empty a full tank of volume 3000 cu.m in 24 hr. If the tank is going to be filled by a tap at the rate of 300 cu.m/hr, what is the least number of additional outlets (which have the same capacity as the former outlets) that have to be opened, so that the tank never overflows?
Anne, Bet and Corr are three bees that start from the same flower and fly away in three different directions in search of nectar. After some time Corr is as distant from the mid point ‘D’ of the straight line joining Anne and Bet as Anne is from D. Anne and Bet are 300m apart while Bet is 180 m from Corr. At this instant Anne sends a distress signal which is received simultaneously by the other two bees. If a bee can fly at a speed of 3 m/sec then who among Bet and Corr can reach Anne quicker and by how many seconds?