Exercise 1

A tank isfull. If 16 litres of water is added to the tank, it becomes full. The capacity of the tank is

A drum of kerosene isfull. When 30 litres of kerosene is drawn from it, it remainsfull. The capacity of the drurn is

A tin of oil wasfull. When 10 bottles of all was taken out and 8 bottles of oil was poured into it, it was full. How many bottles of oil can the tin contain?

1 m of an object is to be represented by 10 cm on the drawing scale. The representative fraction (R.F) of the scale is

An area of 100 sq. cm on the map represents an area of 49 sq. km on the field. The R.F. of the scale to be used is

The fluid contained in a bucket can for large bottles or seven small bottles. A full large bodies used to fill an empty small bottle What fraction of the fluid is left over in the large bottle when the small one is full?

To fill a tank, 25 buckets of water is required. How many buckets of water will be required to fill the same tank if the capacity of the bucket is reduced to two-fifth of its present?

A stationary engine has enough fuel to run 12 hours when its tank isfull. How long will it run when the tank is full?

A tree grows only as fast as the one beside it. In four years the combined growth of the trees is eight feet. How much does the shorter tree grow in 2 years?

A car is filled with four and a half gallons of fuel for a round trip. If the amount of fuel taken while going is more than the amount taken for coming, what is the amount of fuel consumed while coming back?