P and Q can complete a work in 20 days and 12 days respectively. P alone started the work and Q joined him after 4 days till the completion of the work. How long did the work last? February 24, 2021 / By Preparation Point / Basic Maths Mcqs Share on WhatsApp Share on Facebook Share on Twitter Share on LinkedInA. 5 days B. 10 days C. 15 days D. 12 days Share this:TwitterFacebookMoreTelegramWhatsAppLike this:Like Loading... Related Share on WhatsApp Share on Facebook Share on Twitter Share on LinkedIn