Question

Juan and his family fly from London to Rio de Janeiro.

The plane departs at 10 20 and arrives in Rio de Janeiro 11 hours 40 minutes later.
The local time in Rio de Janeiro is 5 hours behind the local time in London.
Work out the time in Rio de Janeiro when the plane arrives.​

Answer 1

The time in Rio de Janeiro when the plane arrives is 17:00.

Explanation:

Since Juan and his family fly from London to Rio de Janeiro, the plane departs at 10:20 and arrives in Rio de Janeiro 11 hours 40 minutes later, and the local time in Rio de Janeiro is 5 hours behind the local time in London To work out the time in Rio de Janeiro when the plane arrives, the following calculation must be performed:

(10:20 + 11:40) - 05:00 = X

22:00 - 05: 00 = X

17:00 = X

Thus, the time in Rio de Janeiro when the plane arrives is 17:00.