Two vesssel A and B contain milk and water in the ratio 7:3 and 3:2.find the ratio in which quantities be taken from the two vessels so that the ratio of milk and water in the new mixture is 2:1.
If 6 men and 8 boys can do a piece of work in 10 days while 26 men and 48 boys can do the same in 2 days, What time taken by 15 men and 20 boys in doing the same type of work ?
Three men start together to travel the same way around a circular track of 11 Km.Their speeds are 4, 5.5 and 8 Km/hr. respectively. After what time will they meet at the starting pint for the first time ?
A cylinder having a base of circumference 60 cm is rolling without sliding at the rate of 5 rounds per second. How much will the cylinder roll in 5 seconds ?