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LCM - HCF: 1 (In hindi)
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Factors ( गुडनखंड) of any number are those numbers which divide that number completely, like 4 and 5 can divide 20 completely so 4 and 5 are factors of 20.

Kapil kumar
I did my btech from NIT Jalandhar. I gave UP PCS Interview in 2015 and 2016, along with gave UPSC mains multiple times.

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U
Unacademy user
sir in question no.5 why we are not multiplying the work of b+c with 4 like 4(4+3) instead of that we are multiplying it with 2 when it is given in question that after 2 more day b lefts the work