Kinematics of motion in a straight line — practice question

Two cyclists, Isabella and Maria, are racing. Each one moves along a straight road with constant acceleration, beginning from rest at point $A$. Isabella accelerates for $5\,\text{s}$ at a steady rate of $a\,\text{m s}^{-2}$. After that, she continues at the constant speed she has reached for $10\,\text{s}$, and then she slows to rest at a constant rate over $5\,\text{s}$. Maria accelerates at a constant rate until she reaches $5\,\text{m s}^{-1}$ over a distance of $27.5\,\text{m}$. She then keeps this speed for $10\,\text{s}$ before decelerating to rest at a constant rate over $5\,\text{s}$.