Subject: General Aptitude · Chapter: H.C.F. and L.C.M. of Numbers · Exam: · Marks: · Difficulty:
The least number of five digits which is exactly divisible by 12, 15 and 18 is
(a)10010
(b)10015
(c)10020
(d)10080
Answer
Answer (as printed): D
Explanation
Least number of 5 digits is 10000. L.C.M. of 12, 15 and 18 is 180. On dividing 10000 by 180 , the remainder is 100 . $$\therefore \quad \text { Required number }=10000+(180-100)=10080 .$$
Explanation as extracted from the printed page; notation may be imperfect.