1.) 3 years ago, Vin's age is 3 times the age of Paul. At the present, Vin's age is twice the age of Paul. What would be their age 3 years from now if the sum of their present age is 18?
2.) Willie bought a jacket for 26.86 pesos. The jacket's price had been discounted by 15%. What was the sale price of the jacket before the discount?