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 45 times in the 19 islands and peninsulas that he visited. How many islands and peninsulas did Ni Hua visit?

Answer 1

Answer:

Let number of island be x

so number of penisulas=19-x

ATQ

2x+3(19-x)=45

2x+57-3x=45

x=12

no of island=12

no of penisula=7

Answer 2

There are 12 islands and 7 peninsulas he visited.

Step-by-step explanation:

Let the number of islands be 'x'

Let the number of peninsulas be '19-x'

Total times = 45

According to question, we get that

$2x+3(19-x)=45\\\\2x+57-3x=45\\\\-x=45-57\\\\-x=-12\\\\x=12$

So, $19-x=19-12=7$

Hence, there are 12 islands and 7 peninsulas he visited.

# learn more:

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 45 times in the 19 islands and peninsulas that he visited. How many islands and peninsulas did Ni Hua visit?

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