Level 3
At the end of May, Xandra had thrice as many 20-cent coins as 50-cent coins in her piggy bank. She took out 70 20-cent coins and exchanged it for 50-cent coins of the same value. In June, she saved another 38 20-cent coins and some 50-cent coins. She then had four times as many 50-cent coins in the end. She had 500 coins in the end. How many 50-cent coins did she save in June?

Level 3
Asher and Pierre had 62 tarts altogether. After Asher ate ¹₆ of his tarts and Pierre ate 10 tarts, the number of tarts Pierre had left was four times the number of tarts Asher had left. How many more tarts did Pierre have than Asher at first?

Level 3
A philanthropist bought a total of $19380 worth of toys, textbooks and clothes to donate to the needy children. The number of clothes bought was 20% more than the number of toys bought but 20% fewer than the number of textbooks bought. The toy cost $12 each and was $2 more expensive than each textbook but 40% cheaper than each piece of clothes. How many toys and textbooks did the philanthropist donate to the needy children?

Level 3
Xavier and Mark received a total of $468. After Xavier spent ⁵₆ of his money and Mark spent ³₄ of his money, Mark had 3 times as much money as Xavier. How much money did Mark have at first?

Level 3
There were 2 times as many vests in Stall K as in Stall L. Stall K moved 112 vests to Stall L and sold 18 more. Stall L bought some more vests and had 5 times as many vests as Stall K. There were 50 vests in Stall K in the end. How many game consoles did Stall L sell?