There are four boys namely Varun, Vinayak, Shivam, and Anuj, and four girls namely Bhumica, Jayanti, Sheetal, and Karishma in a group and each can complete a piece of work in a different number of days. Jayanti can complete the piece of work in 12 days. The number of days taken by Shivam to complete the work is 25% more than the number of days taken by Jayanti to complete the work. The ratio of the number of days taken by Shivam and Varun to complete the work is 3 ∶ 4. The number of days taken by Varun to complete the work is 100% more than the number of days taken by Bhumica to complete the work. The efficiency of Bhumica is 50% more than the efficiency of Karishma. The ratio of the number of days taken by Varun, Vinayak, and Sheetal are 5 ∶ 4 ∶ 2 respectively. The number of days taken by Anuj to complete the work is 50% more than the number of days taken by Sheetal to complete the work.