Q:

A can finish one-third of a work in 5 days, B can finish 2/5^th of the same work in 10 days and C can finish 75 % of the same work in 15 days. They work together for 6 days. The remaining work will be finished by B alone in:

• 1
  2 days
• 2
  $$ {1{1\over 2}}$$ days
• 3
  3 days
• 4
  5 days