Subject: General Aptitude · Chapter: H.C.F. and L.C.M. of Numbers · Exam: · Marks: · Difficulty:
The greatest four digit number which is exactly divisible by each one of the numbers 12, 18, 21 and 28 [SSC-CHSL (10 + 2) Exam, 2015]
(a)9288
(b)9882
(c)9828
(d)9928
Answer
Answer (as printed): C
Explanation
The greatest 4 digit number is 9999 The LCM of 12, 18, 21, 28 is 252 On dividing 9999 by 252 the remainder comes out to be 171 ∴ Required number $=9999-171=9828$
Explanation as extracted from the printed page; notation may be imperfect.