The LCM of 2 numbers is 14 times their HCF.
The sum of LCM and HCF is 600.
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Correct Question :
- The LCM of two numbers is 14 times their HCF. The sum of LCM and HCF is 600. if one number is 280,then find other number
Answer :
- Other number is 8
Given :
- The LCM of two number is 14 times their HCF
- The sum of LCM and HCF is 600
- One number is 280
To find :
- Other number
Solution :
- Let the HCF be x
Given, The LCM of two numbers is 14 times their HCF so,
- LCM be 14x
According to question :
The sum of LCM and HCF is 600 so,
➟ x + 14x = 600
➟ 15x = 600
➟ x = 600/15
➟ x = 40
- HCF = x = 40
- LCM = 14x = 14(40) = 560
Finding the other number :
And also Given, one number is 280 so,
- Other number be x
- LCM × HCF = one number × other number
➟ 560 × 40 = 280 × x
➟ x = 560 × 40 / 280
➟ x = 22400/280
➟ x = 80
Hence , Other number is 80.
Verification :
➟ x + 14x = 600
➟ 40 + 14(40) = 600
➟ 40 + 560 = 600
➟ 600 = 600
Hence , Verified
➟ 560 × 40 = 280 × x
➟ 560 × 40 = 280 × 80
➟ 22400 = 22400
Hence , Verified
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