Challenge of the Week: The Baraat and the Bamboo Bridge

The shehnai has started, the priest is glancing at his watch, and the muhurat will not wait.

Four guests must cross the bamboo bridge at night.

The four guests need different times to cross the bridge one way:

- Dadi (grandmother): 10 minutes - Chacha (uncle): 5 minutes - The bride's friend: 2 minutes - The young cousin: 1 minute

What is the minimum total time needed to get all four safely across?