Menu Close

The-greatest-number-that-will-divide-82-111-and-140-leaving-the-same-remainder-in-each-case-is-




Question Number 18213 by chux last updated on 16/Jul/17
The greatest number that will  divide 82 ,111 and 140 leaving the   same remainder in each case is........
$$\mathrm{The}\:\mathrm{greatest}\:\mathrm{number}\:\mathrm{that}\:\mathrm{will} \\ $$$$\mathrm{divide}\:\mathrm{82}\:,\mathrm{111}\:\mathrm{and}\:\mathrm{140}\:\mathrm{leaving}\:\mathrm{the}\: \\ $$$$\mathrm{same}\:\mathrm{remainder}\:\mathrm{in}\:\mathrm{each}\:\mathrm{case}\:\mathrm{is}…….. \\ $$
Answered by Tinkutara last updated on 17/Jul/17
82 = xa + r  111 = xb + r  140 = xc + r  x(b − a) = 29, x(c − b) = 29, x(c − a) = 58  x divides both 29 and 58. Hence x = 29.  Check: ((82)/(29)) = 2 ((24)/(29))  ((111)/(29)) = 3 ((24)/(29))  ((140)/(29)) = 4 ((24)/(29))
$$\mathrm{82}\:=\:{xa}\:+\:{r} \\ $$$$\mathrm{111}\:=\:{xb}\:+\:{r} \\ $$$$\mathrm{140}\:=\:{xc}\:+\:{r} \\ $$$${x}\left({b}\:−\:{a}\right)\:=\:\mathrm{29},\:{x}\left({c}\:−\:{b}\right)\:=\:\mathrm{29},\:{x}\left({c}\:−\:{a}\right)\:=\:\mathrm{58} \\ $$$${x}\:\mathrm{divides}\:\mathrm{both}\:\mathrm{29}\:\mathrm{and}\:\mathrm{58}.\:\mathrm{Hence}\:{x}\:=\:\mathrm{29}. \\ $$$$\mathrm{Check}:\:\frac{\mathrm{82}}{\mathrm{29}}\:=\:\mathrm{2}\:\frac{\mathrm{24}}{\mathrm{29}} \\ $$$$\frac{\mathrm{111}}{\mathrm{29}}\:=\:\mathrm{3}\:\frac{\mathrm{24}}{\mathrm{29}} \\ $$$$\frac{\mathrm{140}}{\mathrm{29}}\:=\:\mathrm{4}\:\frac{\mathrm{24}}{\mathrm{29}} \\ $$

Leave a Reply

Your email address will not be published. Required fields are marked *