Q1: Three years earlier father's age was 5 times his son's age. At present the age of father has becomes 3 his son's age. The difference between the ages of father and son is
24 years
28 years
20 years
30 years

Jake bakes and sell apple pies. he sells each pie for $5.75 . the materials to make the pies cost $40. the boxes jake puts the pies in cost & 12.50 total. how many pies does jake need to sell to earn a profit of $50