ABC26GN0430 · H.C.F. and L.C.M. of Numbers

Subject: General Aptitude · Chapter: H.C.F. and L.C.M. of Numbers · Exam: 2010 · Marks: · Difficulty:

Two numbers are in the ratio of 3: 4. Their L.C.M. is 84. Find the numbers.
Answer
Answer (as printed):
Explanation
Let the numbers be $3x$ and $4x$. Then, their L.C.M. $=12x$. So, $12x=84$ or $x=7$. $\therefore$ The numbers are 21 and 28.

Explanation as extracted from the printed page; notation may be imperfect.

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