Question 1
Question 2
Two pipes X and Y attached to a swimming pool can fill the pool in 20 minutes and 30 minutes respectively working alone. Both were opened together but due to malfunctioning of motor of pipe X, it had to be shut down after two minutes but Y continued to work till the swimming pool was filled completely. Find the total time taken to fill the pool.
Question 3
Question 4
Question 5
Question 6
Question 7
Question 8
Question 9
Question 10
There are 15 questions to complete.