The ratio of two numbers is 3 : 4 and their H.C.F. is 4. Their L.C.M. is

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WEBCSC 05/2021 Common Official Paper (Morning Shift)
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  1. 12
  2. 16
  3. 24
  4. 48

Answer (Detailed Solution Below)

Option 4 : 48
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Detailed Solution

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Given:

The ratio of two numbers = 3 : 4

Their H.C.F. = 4

Formula Used:

Product of two numbers = H.C.F. × L.C.M.

Calculation:

Let the two numbers be 3x and 4x.

Since their H.C.F. is 4, we have:

H.C.F. of 3x and 4x = x = 4

So, the numbers are 3 × 4 = 12 and 4 × 4 = 16

Product of the two numbers = 12 × 16

⇒ Product of the two numbers = 192

Using the formula:

H.C.F. × L.C.M. = Product of the two numbers

⇒ 4 × L.C.M. = 192

⇒ L.C.M. = 192 / 4

⇒ L.C.M. = 48

The L.C.M. of the two numbers is 48.

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