the lcm of two numbers is 7700, and their hcf is 11. if one of these numbers is 275, what is the other number?

the lcm of two numbers is 7700, and their hcf is 11. if one of these numbers is 275, what is the other number?

2 months ago 12
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Given:

  • LCM of two numbers = 7700
  • HCF (GCD) of two numbers = 11
  • One of the numbers = 2

We need to find the other number.

Step 1: Use the relationship between LCM, HCF, and the two numbers

For any two numbers aaa and bbb:

LCM(a,b)×HCF(a,b)=a×b\text{LCM}(a,b)\times \text{HCF}(a,b)=a\times bLCM(a,b)×HCF(a,b)=a×b

Let the other number be xxx. Given:

LCM=7700,HCF=11,a=2,b=x\text{LCM}=7700,\quad \text{HCF}=11,\quad a=2,\quad b=xLCM=7700,HCF=11,a=2,b=x

Substitute into the formula:

7700×11=2×x7700\times 11=2\times x7700×11=2×x

84700=2x84700=2x84700=2x

Step 2: Solve for xxx

x=847002=42350x=\frac{84700}{2}=42350x=284700​=42350

Step 3: Verify the HCF condition

  • The HCF is given as 11.
  • Check if 11 divides both 2 and 42350.

Since 11 does not divide 2, this contradicts the given HCF.

Conclusion

The problem has an inconsistency because:

  • If the HCF is 11, both numbers must be divisible by 11.
  • But one number is 2, which is not divisible by 11.

Thus, there is no such number xxx that satisfies all the given conditions simultaneously. If you want, I can help you re-check the problem or clarify any part!

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