If men or 9 women can do a piece of work in 19 days then in how many d

1.	If men or 9 women can do a piece of work in 19 days then in how many days will 3 men and 6 women do the same work?(a) 12 (b) 15 (c) 18 (d) 21
Answer» $\huge\red{\underbrace{\overbrace{\ulcorner{\mid{\overline{\underline{ANSWER}}}}}}}$ ${\bf{\green{=>5men=9women}}}$ ${\bf{\green{=>women=5/9men}}}$ ${\bf{\green{then,}}}$ ${\bf{\green{=>3men+6women}}}$ ${\bf{\green{=>3men+6(5/9men)}}}$ ${\bf{\green{=>27men+30men/9}}}$ ${\bf{\green{=>57men/9}}}$ ${\bf{\green{=>19men/3}}}$ ${\bf{\green{let, no. Of days =x}}}$ ${\bf{\orange{Given that, }}}$ ${\bf{\orange{=>19×5=x×19/3}}}$ ${\bf{\orange{=>5=x/3}}}$ ${\bf{\orange{=>x=15days}}}$