Conventional fan regulators use resistors to control fan speed. By varying the resistance, the voltage across the fan changes, which adjusts its speed. Higher resistance results in lower fan speed due to reduced voltage.
P can do a piece of work in 30 days. Q do the same work in 40 days. R can do it in 35 days. P and R worked for 4 days and handed it to Q. Q worked for s...
X, Y and Z can do a piece of work in 90 days, 40 days and 120 days respectively. If they all work together alternatively starting with X, Y than Z respe...
A and B together can complete a work in 12 days, and B alone can complete it in 20 days. How many days will A take to complete the work alone?
A contractor hired 80 workers to complete a work in 60 days. After 40 days, it was found that only half of the work was completed. Find the number of ex...
A contractor undertook to make 20 km of roadway in 48 weeks. In 28 weeks, 8 km was completed by 120 men working 12 hours a day. The men then agreed to w...
A contractor was tasked with constructing a bridge within 45 days. To complete the project, he initially hired 75 workers. However, after 40 days, he di...
40 men can complete a piece of work in 40 days. ‘x’ men started the work and after 30 days 64 more men joined them so that whole work was finished i...
A can complete a work in 20 days. B takes 10 days less than A to complete the same work. In how many days can both of them together complete 90% of the ...
P alone can finish a piece of work ‘M’ in 6 days while Q takes 3 days to finish it alone. P, Q and R working together can finish the work &l...
Lucas, Maya, and Riley can build a wall in 5, 10, and 15 days respectively. If they start the job together and Lucas leaves 3 days before the job is don...
