Math, asked by cparmar1300, 1 year ago

Find the least number which on decreasing by 20 is exactly divisible by 18,21,28and30

Answers

Answered by MakutoShiedo

8

LCM of 18 , 21, 28, 31= 1260
Req. No. = 1260+20
= 1280
Ans.= 1280

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