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?

He visited 12 island and 7 peninsulas.

Step-by-step explanation:

Let x be the number of island he visited and y be the number of peninsulas he visited,

Since, He visited 19 islands and peninsulas,

⇒ x + y = 19, (1)

Also, He went skydiving a total of 45 times in which he skydived twice in every island and skydived thrice in every peninsula,

⇒ 2x + 3y = 45 (2),

Equation (2) - 2 × Equation (1),

We get,

y = 45 - 38 = 7

By substituting this value in equation (1),

We get, x = 12

Hence, He visited 12 island and 7 peninsulas.