Question

Susan's father is 3 years more than twice as old as Susan. The product of their ages in years is 560. How old is Susan?

Answer 1

16,35

Answer 2

fathers age .. y
susen age 2x
so=
2x+3=y
y*x=560
x=560/y
so
1120/y +3= y
y2 -3y -1120=0

solving this eqn we get y=35
so we get x =16

Answer 3

Solution:In a theater,there are 1200 seats.The number of seats in each row is 10 less than the number of rows.How many seats are there in each row?