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Which of the following numbers that divi...

Which of the following numbers that divisible by 8 but not divisible by 12?

A

24, 48, 72

B

8, 16, 24

C

`12, 24, 36`

D

`96, 192, 288`

Text Solution

AI Generated Solution

The correct Answer is:
To solve the problem of finding which of the following numbers is divisible by 8 but not by 12, we can follow these steps: ### Step 1: Understand the divisibility rules - A number is **divisible by 8** if the last three digits of the number form a number that is divisible by 8. - A number is **divisible by 12** if it is divisible by both 3 and 4. ### Step 2: Analyze the options given Let's assume the options provided are: 1. 24, 48, 72 2. 8, 16, 24 3. 12, 24, 36 4. 96, 192, 288 ### Step 3: Check each option for divisibility by 8 and 12 #### Option 1: 24, 48, 72 - **24**: Divisible by 8 (24 ÷ 8 = 3) and by 12 (24 ÷ 12 = 2). - **48**: Divisible by 8 (48 ÷ 8 = 6) and by 12 (48 ÷ 12 = 4). - **72**: Divisible by 8 (72 ÷ 8 = 9) and by 12 (72 ÷ 12 = 6). - Conclusion: All numbers in this option are divisible by both 8 and 12. #### Option 2: 8, 16, 24 - **8**: Divisible by 8 (8 ÷ 8 = 1) and not by 12 (8 ÷ 12 is not an integer). - **16**: Divisible by 8 (16 ÷ 8 = 2) and not by 12 (16 ÷ 12 is not an integer). - **24**: Divisible by 8 (24 ÷ 8 = 3) and by 12 (24 ÷ 12 = 2). - Conclusion: 8 and 16 are divisible by 8 but not by 12. #### Option 3: 12, 24, 36 - **12**: Divisible by 8 (12 ÷ 8 is not an integer) and by 12 (12 ÷ 12 = 1). - **24**: Divisible by 8 (24 ÷ 8 = 3) and by 12 (24 ÷ 12 = 2). - **36**: Divisible by 8 (36 ÷ 8 is not an integer) and by 12 (36 ÷ 12 = 3). - Conclusion: None of the numbers in this option are divisible by 8. #### Option 4: 96, 192, 288 - **96**: Divisible by 8 (96 ÷ 8 = 12) and by 12 (96 ÷ 12 = 8). - **192**: Divisible by 8 (192 ÷ 8 = 24) and by 12 (192 ÷ 12 = 16). - **288**: Divisible by 8 (288 ÷ 8 = 36) and by 12 (288 ÷ 12 = 24). - Conclusion: All numbers in this option are divisible by both 8 and 12. ### Final Conclusion The only option where the numbers are divisible by 8 but not by 12 is **Option 2: 8, 16, 24**.
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