Jennylyn

The amount of paint p needed to paint the walls of a room varies directly as the area A of the wall. If two gallons of paint is needed to paint a 40 sq meter wall, how many gallons of paint are needed to paint a wall with an area of 100 sq meters?

A mailman can sort out 738 letters in 6 hours. If the number of sorted letters varies directly as the number of working hours, how many letters can be sorted out in 9 hours?

Jessie uses 20 liters pf gasoline to travel 200 kilometers, how many liters of gasoline will he use on a trip of 700 kilometers?

Every 3 months, a man deposits in his bank account a savings of Php 5,000. In how many years would he have saved Php 250,000?

The pressure p at the bottom of swimming pool varies directly as the depth d of the water. If the pressure is 125 Pascal when the water is 2 meters deep, find the pressure when it is 4.5 meters deep.

The shadow of an object varies directly as its height h. A man 1.8 m tall casts a shadow 4.32 m long. If at the same time a flagpole casts a shadow 12.8 m long, how how is the flagpole?