ABC26GN0573 · H.C.F. and L.C.M. of Numbers

Subject: General Aptitude · Chapter: H.C.F. and L.C.M. of Numbers · Exam: 2014 · Marks: · Difficulty:

If three numbers are $2 a, 5 a$ and $7 a$, what will be their LCM?

(a)70a

(b)$65 a$

(c)75a

(d)$70 a^{3}$

Answer

Answer (as printed): A

Explanation

The given three numbers are $2 a, 5 a$ and $7 a$. LCM of $2 a$, $5 a$ and $7 a=2 \times 5 \times 7 \times a=70 a$

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