Q1)Ali's budget line relating good X and good Y has intercept of 50 unit of good X and 20 units of good Y. if the price of good X is 12, what is Ali's income? What is the price of good Y? What is then slope of budget line?

Q2) Colgate sells its standard size toothpaste for Rs. 25. Its sales have been on an average 8000 units per month over the last year. Recently, its competitor Sparkle reduced the price of its same standard size toothpaste from Rs. 35 to Rs. 30. As a result Colgate sales declined by 1500 units per month.

1. Calculate the cross elasticity between the two products.
2. iWhat does your estimate indicate about the relationship between the two?