A food chemist Adya is trying to mix two brands of salsa to create a third. The Pala Salsa contains 5 parts tomato and 13 parts celantro whereas the Adi brand of salsa contains 7 parts tomato and 2 parts celantro. Adya mixed X cups of Pala salsa with Y cups of Adi salsa to produce X+Y cups of the third brand (Adya was very careful not to spill any of the salsa!). If The final mixture contains twice as much tomato as celantro, what is X:Y?
TJ test prep practice problems for our students and readers. The problems provide a very small sampling of what Optimal TJ Prep students work with.