Level 2
There are 180 blue and green balls in bag A. There are 320 green and red balls in bag B. Given that there are thrice as many red balls as blue balls, and the number of green balls in both bags is the same, find the difference between the red balls and the blue balls.
Level 3 There are 540 black and blue pens in Box A. There are 450 black and green pens in Box B. The number of blue pens in Box A is four times the number of green pens in Box B. The number of black pens in both boxes is the same.
How many green pens are there in Box B?
Find the total number of black pens in both boxes.
Level 2
There are 225 students in Campsite A and 420 students in Campsite B. Given that the number of boys in both campsites are the same and the number of girls in Campsite B is 4 times that of Campsite A, find the number of boys in both campsites.
Level 3
A container filled with 4 identical marbles weighs 1700 g. The same container when filled with 2 identical balls weighs 500 g. The mass of each marble is two times the mass of each ball. What is the mass of the container?
Level 3 The total cost of the TV, the radio and the heater is $2700. The heater costs twice as much as the radio. The TV costs twice as much as the total price of the heater and radio. How much more does the TV cost than the heater?
