Question

Ni Hua is an adventurous traveler. He skydives twice in every island he visits and skydives thrice in every peninsula he visits.

In the last decade, Ni Hua went skydiving a total of 454545 times in the 191919 islands and peninsulas that he visited.
How many islands and peninsulas did Ni Hua visit?
Choose 1 answer:
A)Ni Hua visited 121212 islands and 777 peninsulas.
B)Ni Hua visited 777 islands and 121212 peninsulas.
C)There is not enough information to determine the exact number of islands and peninsula Ni Hua visited.
D)The given information describes an impossible situation.

Answer 1

A) Ni Hua visited 12 islands and 7 peninsulas.

Explanation:

If all visits had been to islands, Hua would have skydived 19·2 = 38 times. He actually skydived 45-38 = 7 times more than that. Each peninsula that replaces an island adds 1 skydive to his total, so he must have visited 7 peninsulas.

Hua visited 7 peninsulas and 12 islands.