Cross-country (2)

During the event, the heart of one of the race's competitor beats at 95 heartbeats per minutes
but during the final sprint this runner's heart rate increases by 100 %.

To know about this runner's heart rate during the final sprint, you can:

multiply by 100 the heartbeat of the competitor during the cross.
add 100 to the heartbeat of the competitor during the cross.
multiply by 2 the heartbeat of the competitor during the cross.
add 1 to the heartbeat of the competitor during the cross.
divide by 2 the heartbeat of the competitor during the cross.