Level 2
The total cost of a watch, a radio and a calculator is $270. The radio costs thrice as much as the calculator. The watch costs twice as much as the radio. Find the difference in the cost between the watch and the radio.
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
Three sisters shared a total of 350 stamps. Maria has 80 more stamps than Leah, and Leah had 96 more stamps than Eva. How many stamps did Leah have?
Level 3
A funfair booth consists of 3 types of prize, A, B and C. There are 84 more Type A prizes than Type B prizes and 26 more Type C prizes than Type A prizes. Given that the booth consists of a total of 273 prizes, how many Type B prizes are there at the booth?
Level 3
There were 345 green, blue and red candies in a bag. Given that there were 135 more green candies than red candies and 86 more blue candies than red candies, how many red candies were there in the bag?
