In a mixture of 30 liters, the ratio of acid and water is 7 : 3. How much more water is to be added to get a new mixture containing acid and water in the ratio of 3 : 7?

A container is 1/2 full., When 8 gallons is removed the container is 1/10 full. What is the capacity of the co...

Find the number that should be placed in the gap of the series : 80, 96, -, 128

The length of the train that takes 8 second to pass a pole when it runs at a speed of 3 km/hr is-

A man travels 5 miles towards west, 2 miles towards south, then again 5 miles towards west. What is the direct...

Karim can do a job in 15 minutes and his brother takes twice as long to do the same job. If they work together...

If 3x + 2y=8 and 2x - y =3, find the value of 4y - 3x.