You want to check if a number n is between 10 and 20 inclusive in Kotlin. Which expression correctly uses comparison operators?

hard📝 Application Q8 of 15

Kotlin - Operators and Expressions

You want to check if a number n is between 10 and 20 inclusive in Kotlin. Which expression correctly uses comparison operators?

An < 10 && n > 20

Bn > 10 || n < 20

Cn == 10 && n == 20

Dn >= 10 && n <= 20

Step-by-Step Solution

Solution:

Step 1: Understand the range condition
To check if n is between 10 and 20 inclusive, it must be greater than or equal to 10 and less than or equal to 20.
Step 2: Match the correct logical expression
n >= 10 && n <= 20 uses n >= 10 && n <= 20, which correctly checks the range.
Final Answer:
n >= 10 && n <= 20 -> Option D
Quick Check:
Range check uses >= and <= with && [OK]

Quick Trick: Use && to combine range checks with >= and <= [OK]

Common Mistakes:

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