6. Two marks exercise problems V

1. From a water tank \(100\) litres of water is used every day. After \(10\) days there is \(2000\) litres of water in the tank. How much water was there in the tank before \(10\) days?

 

Water in the tank before \(10\) days \(=\)  litres

 

 

2. A dog is climbing down in to a well to drink water. In each jump it goes down \(14\) steps. The water level is in \(20^{\text{th}}\) step. How many jumps does the dog take to reach the water level?

 

Number of jumps the dog to reach the water \(=\)