Question

Sol. (4) Required number ( =(L C M text { of } 15,20,36 ) and 48)+3
begin{tabular}{l|c}
2 & 15,20,36,48
hline 2 & 15,10,18,24
hline 3 & 15.5,9,12
hline 5 & 5,5,3,4
hline & 1,1,3,4
end{tabular}
( therefore mathrm{LCM}=2 times 2 times 3 times 5 times 3 times 4=720 )
( therefore ) Required number ( =720+3=723 )

# Ex.3. Find the least number which when divided sep- arately by 15, 20, 36 and 48 leaves 3 as re- mainder in each case (1) 183 (2) 243 (3) 483 (4) 723 SSC CGL (Tier-II) 2014

Solution